Cita APA (7th ed.)

Postlethwait, R. W., & Sealy, W. C. (1961). Surgery of the esophagus. Thomas.

Cita Chicago (17th ed.)

Postlethwait, Raymond W., i Will Camp Sealy. Surgery of the Esophagus. Springfield, IL: Thomas, 1961.

Cita MLA (9th ed.)

Postlethwait, Raymond W., i Will Camp Sealy. Surgery of the Esophagus. Thomas, 1961.