No official APA format for citing online classroom materials exists - this is merely a recommended format to use in citing such documents.
Author. (Year). Title of document. Retrieval information.
UMGC. (n.d.). Lecture 5: Leadership and strategic thinking. Document posted in University of Maryland Global Campus HCAD 600 9041 online classroom, archived at http://campus.umgc.edu
Author name. (Year). Document title. Retrieval information.
Health.gov. (2018). Leading health indicators. Retrieved from https://www.healthypeople.gov/2020/leading-health-indicators/2020-LHI-Topics
When no author is named, begin with the title, followed by the publication year, etc. When no publication years is given, use (n.d.) for no date.
If in your Discussion post you quote, paraphrase, or summarize your course module or course readings or other material you researched from the library or the Web or a print source, give an in-text citation AND a reference list citation at the end of your Discussion post in the same manner as you would within a research paper.
If you mention or refer to another student's entry/response in a Discussion post then do not cite it but simply mention the other student's entry in your sentence. Example: I agree with Susan Day (Discussion Post October 30, 2018) where she lists specific state legislatures that supported the Affordable Care Act.
If there is a DOI:
Author last name, author first initial. (Year). Article title. Journal title, volume(issue), pages. DOI URL
Dumais, S. A., Rizzuto, T. E., Cleary, J., & Dowden, L. (2013). Stressors and supports for adult online learners: Comparing first- and continuing-generation college students. American Journal of Distance Education, 27(2), 100-110. https://doi.org/10.1080/08923647.2013.783265
If there is no DOI, simply end the reference citation with the page numbers:
Author last name, author first initial. (Year). Article title. Journal title, volume(issue), pages.
Reitzes, D. C., & Mutran, E. J. (2004). The transition to retirement: Stages and factors that influence retirement adjustment. International Journal of Aging and Human Development, 59(1), 63-84.
Author last name, author first initial. (Year). Book title. Publisher name.
Veletsianos, G. (2020). Learning online: The student experience. Johns Hopkins University Press.
If there is a DOI:
Author last name, author first initial. (Year). E-book title. Publisher name. DOI URL
Chaffe-Stengel, P., & Stengel, D. (2012). Working with sample data: Exploration and inference. Business Expert Press. https://doi.org/10.4128/9781606492147
If there is no DOI, then cite as a print book:
Author last name, author first initial. (Year). E-book title. Publisher name.
Burgess, R. (2019). Rethinking global health: Frameworks of power. Routledge.
Author last name, author first initial. (Date). Web page title. Web site publisher, if different than author. URL
Freitas, N. (2015, January 6). People around the world are voluntarily submitting to China’s Great Firewall. Why? Slate. http://www.slate.com/blogs/future_tense/2015/01/06/tencent_s_wechat_worldwide_internet_users_are_voluntarily_submitting_to.html
Centers for Disease Control and Prevention. (n.d.). What is health literacy? https://www.cdc.gov/healthliteracy/learn/index.html