Sandra S. Gottfried. (1993). Biology today (With 777 illustrations). St. Louis, Missouri: Mosby.
Trích dẫn kiểu ChicagoSandra S. Gottfried. Biology Today (With 777 Illustrations). St. Louis, Missouri: Mosby, 1993.
Deismireacht MLASandra S. Gottfried. Biology Today (With 777 Illustrations). St. Louis, Missouri: Mosby, 1993.
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