MLA

Hess, Julius Hays, and Evelyn C Lundeen. The Premature Infant; Medical and Nursing Care. 2d ed. Philadelphia,: Lippincott, 1949.

APA

Hess, J. Hays, & Lundeen, E. C. (1949). The premature infant; medical and nursing care. 2d ed. Philadelphia,: Lippincott.

Chicago

Hess, Julius Hays, and Evelyn C Lundeen. The Premature Infant; Medical and Nursing Care,. 2d ed. Philadelphia,: Lippincott, 1949.