TY - BOOK AU - Frick Childs TI - Horned ruminants of North America U1 - 569.73(70) PY - 1937/// CY - New York PB - American Museum of Natural History KW - Artiodactyla KW - Horned Ruminants KW - North America N1 - Published in Bulletin of the American Museum of Natural History, v.69, 1937 ER -