MLA

Avery, Mary Ellen, and Alexander J Schaffer. The Lung and Its Disorders In the Newborn Infant. 2nd ed. Philadelphia: Saunders, 1968.

APA

Avery, M. Ellen, & Schaffer, A. J. (1968). The lung and its disorders in the newborn infant. 2nd ed. Philadelphia: Saunders.

Chicago

Avery, Mary Ellen, and Alexander J Schaffer. The Lung and Its Disorders In the Newborn Infant. 2nd ed. Philadelphia: Saunders, 1968.