Cita APA (7th ed.)

Westra, D. (1966). Zonography: The narrow-angle tomography. Excerpta Medica Foundation.

Cita Chicago (17th ed.)

Westra, Durk. Zonography: The Narrow-angle Tomography. Amsterdam, New York: Excerpta Medica Foundation, 1966.

Cita MLA (8th ed.)

Westra, Durk. Zonography: The Narrow-angle Tomography. Excerpta Medica Foundation, 1966.