Cita APA (7th ed.)

Long, W. A. (1990). Fetal and neonatal cardiology. Saunders.

Cita Chicago (17th ed.)

Long, Walker A. Fetal and Neonatal Cardiology. Philadelphia, PA: Saunders, 1990.

Cita MLA (9th ed.)

Long, Walker A. Fetal and Neonatal Cardiology. Saunders, 1990.