In some cases, you may need to cite an original source that you've only encountered through a secondary source. This occurs when you're unable to access the original source because it is rare or difficult to obtain. If the original source is unavailable, cite both the original and the secondary source using the phrase "quoted in...".
Note
1. 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.
Bibliography
Zukofsky, Louis. "Sincerity and Objectification." Poetry 37 (February 1931): 269. Quoted in Bonnie Costello, Marianne Moore: Imaginary Possessions. Cambridge, MA: Harvard University Press, 1981.
See Chicago Manual 14.260
