APA

Patten B. M., . (1948). The embryology of the pig. New York: McGraw-Hill.

Chicago

Patten Bradley M, . 1948. The embryology of the pig. New York: McGraw-Hill.

Harvard

Patten B. M., . (1948). The embryology of the pig. New York: McGraw-Hill.

MLA

Patten Bradley M, . The embryology of the pig. New York: McGraw-Hill. 1948.