Simon, S., & Warnick, E. (1998). They swim the seas: The mystery of animal migration. Browndeer Press/Harcourt Brace.
Cita Chicago Style (17a ed.)Simon, Seymour, y Elsa Warnick. They Swim the Seas: The Mystery of Animal Migration. San Diego, Calif.: Browndeer Press/Harcourt Brace, 1998.
Cita MLA (8a ed.)Simon, Seymour, y Elsa Warnick. They Swim the Seas: The Mystery of Animal Migration. Browndeer Press/Harcourt Brace, 1998.
Precaución: Estas citas no son 100% exactas.