Gardiner, C. H. (1970). Samuel Putnam, Latin Americanist: A bibliography. Southern Illinois University.
Chicago-viite (17. p.)Gardiner, Clinton Harvey. Samuel Putnam, Latin Americanist: A Bibliography. Carbondale: Southern Illinois University, 1970.
MLA-viite (9. p.)Gardiner, Clinton Harvey. Samuel Putnam, Latin Americanist: A Bibliography. Southern Illinois University, 1970.
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