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Answered By: Michael Pujals Last Updated: Sep 28, 2018 Views: 94
This is called an indirect citation.
From the MLA handbook:
6.4.7 Citing Indirect Sources
Whenever you can, take material from the original source, not a secondhand one. Sometimes, however, only an indirect source is available -- for example, someone's published acount fo another's spoken remarks. If what you quote or paraphraes is itself a quotation, put the abbreviation qtd. in ("quoted in") before the indirect source you cite in your parenthetical reference.
Samuel Johnson admitted the Edmund Burke was an "Extraordinary man" (qtd. in Boswell 2: 450)
Boswell, James. The Life of Johnson. Ed. George Birbeck Hill and L. F. Powell. 6 vols. Oxford:Clarendon, 1934-50. Print