Scenario: You read a book by Costello that cites an earlier article by Zukofsky. You want to cite Zukofsky's article, but have not read Zukofsky's article itself.
7. Louis Zukofsky, "Sincerity and Objectification," Poetry 37 (February 1931):269, quoted in Bonnie Costello, Marianne Moore: Imaginary Possessions (Cambridge, MA: Harvard University Press, 1981), 78.
Zukofsky, Louis. "Sincerity and Objectification." Poetry 37 (February 1931):269. Quoted in Bonnie Costello, Marianne Moore: Imaginary Possessions. Cambridge, MA: Harvard University Press, 1981, 78.