Olson, Thomas Mandaneous, 1884-1944. Elements of dairying. - Rev. ed. - New York, Macmillan Co., 1950. - xix, 708 p. illus., ports., maps. 22 cm. LCCN: agr50000402 Subjects--Topical Terms: Dairying. LC Class. No.: SF239 / .O5 1950 Dewey Class. No.: 637