Heard, S. D., King, M. W., & Prittie, E. J. (1933). Stories of American explorers and settlers. John C. Winston Co.
Lua i Stíl Chicago (17ú heag.)Heard, Sarah Dow, Morrill Whitney King, agus Edwin John Prittie. Stories of American Explorers and Settlers. Philadelphia, Chicago [etc.]: John C. Winston Co, 1933.
Lua MLA (8ú heag.)Heard, Sarah Dow, et al. Stories of American Explorers and Settlers. John C. Winston Co, 1933.
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