Patton, Bradley M. Embryology of the Pig / Bradley M. Patton. - 3rd ed. - New York : Blakiston, c 1948. - xiii, 352 p. : ills. ; 22 cm. Includes index. 312 312 Subjects--Topical Terms: Specific topics in natural history of animals. Dewey Class. No.: 591.33 / P277e