Citing Indirect Sources | 8th Edition
The MLA Handbook recommends taking material from the original source whenever possible. If you need to use indirect quotations, use “qtd. in” to indicate the source consulted. MLA also recommends using your text to clarify the relationship between the original and the secondhand source.
Jones claimed that runners who “drank regularly usually stopped running after a few months” (qtd. in Salazar 212).