Dairy science, its principles and practice.
Petersen, William Earl, 1892-
Dairy science, its principles and practice. Edited by R. W. Gregory. - 2d ed. - Philadelphia, Lippincott [1950] - viii, 695 p. illus., maps. 24 cm.
"Reference readings": p. 676-686.
agr50000416
GB50-2689
Dairying.
Dairy cattle.
SF239 / .P43 1950
637
Dairy science, its principles and practice. Edited by R. W. Gregory. - 2d ed. - Philadelphia, Lippincott [1950] - viii, 695 p. illus., maps. 24 cm.
"Reference readings": p. 676-686.
agr50000416
GB50-2689
Dairying.
Dairy cattle.
SF239 / .P43 1950
637