B: Author Last, First. "Title of Article: Subtitle of Article," JournalTitle: Journal Subtitle Volume Number, Issue Number (Date of Publication): XX-XX. Quoted in First Name of Author of Secondary Source Last Name of Author of Secondary Source, Title of Source: Subtitle of Source. Place of Publication: Publisher Name, Year.
Ex: Zukofsky, Louis. "Sincerity and Objectification," Poetry 37 (February 1931): 269. Quoted in Bonnie Costello, Marianne Moore: Imaginary Possessions. Cambridge, MA: Harvard University Press, 1981.
N: 1Author First Name/Initial Author Last Name, "Title of Article: Subtitle of Article," JournalTitle: Journal Subtitle Volume Number, Issue Number (Date of Publication): XX-XX, quoted in First Name of Author of Secondary Source Last Name of Author of Secondary Source, Title of Source: Subtitle of Source. (Place of Publication: Publisher Name, YEAR), Page Numbers.
Ex: 1Louis Zukofsky, "Sincerity and Objectification," Poetry 37 (February 1931): 269, quoted in Bonnie Costello, Marianne Moore: Imaginary Possessions (Cambridge, MA: Harvard University Press, 1981). 78.
17.9.3: Turabian states that "Responsible researchers avoid repeating quotations that they have not actually seen in the original" (205). That being said, when the original source is unavailable (i.e. unpublished manuscript), researchers may need to include the quotation as it is found in a secondary source. This is done by using the terms "quoted in" and then listing the secondary source information in the citation (pp. 205-206).
For further examples, please consult: Kate L. Turabian, A Manual for Writers of Term Papers, Theses, and Dissertations, 9th ed., rev. by Wayne C. Booth, Gregory G. Colomb, Joseph M. Williams, et al. (Chicago: University of Chicago Press, 2018).