Hertwig, R., & Kingsley, J. S. (1902). A manual of zoology. H. Holt and Co..
Citación estilo ChicagoHertwig, Richard, and J. S. Kingsley. A Manual of Zoology. New York: H. Holt and Co., 1902.
Cita MLAHertwig, Richard, and J. S. Kingsley. A Manual of Zoology. H. Holt and Co., 1902.
Warning: These citations may not always be 100% accurate.