Cita APA (7a ed.)
Roberts, G., & Chichester, F. Atlas of Discovery. Gallery Books.
Cita estilo Chicago (17a ed.)
Roberts, Gail, y Francis Chichester. Atlas of Discovery. Nueva York, EUA: Gallery Books.
Cita MLA (9a ed.)
Roberts, Gail, y Francis Chichester. Atlas of Discovery. Gallery Books.
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