Cita APA (7a ed.)
Sale, R. D., & Karn, E. D. American Expansion: A Book of Maps. Dorsey.
Cita estilo Chicago (17a ed.)
Sale, Randall D., y Edwin D. Karn. American Expansion: A Book of Maps. Homewood, EUA: Dorsey.
Cita MLA (9a ed.)
Sale, Randall D., y Edwin D. Karn. American Expansion: A Book of Maps. Dorsey.
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