Ensminger, Milton Eugene. Swine science - 4 ed. - Danville, Ill. : Interstate, 1970 - 881 p. : ilus. ; gráfs. - Animal agriculture series . - Animal agriculture series . LCCN: 41474 Subjects--Topical Terms: Ganado porcino. Dewey Class. No.: 636.4 / E58 1970