Cita APA

English Language Services, & English Language Services. (1974). Medicine (7. edition.). New York, New York: Collier MacMillan International.

Citación estilo Chicago

English Language Services, y English Language Services. Medicine. 7. edition. New York, New York: Collier MacMillan International, 1974.

Cita MLA

English Language Services, y English Language Services. Medicine. 7. edition. New York, New York: Collier MacMillan International, 1974.

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