Cita APA (7th ed.)

Sinclair, W. B. (1972). The grapefruit: Its composition, physiology, and products. University of California.

Cita Chicago (17th ed.)

Sinclair, Walton B. The Grapefruit: Its Composition, Physiology, and Products. Berkeley: University of California, 1972.

Cita MLA (9th ed.)

Sinclair, Walton B. The Grapefruit: Its Composition, Physiology, and Products. University of California, 1972.