Cita APA (7th ed.)

Robinson, R. W., & Walters, D. (1997). Cucurbits. Cab International.

Cita Chicago (17th ed.)

Robinson, R. W., i Decker Walters. Cucurbits. Nueva York: Cab International, 1997.

Cita MLA (9th ed.)

Robinson, R. W., i Decker Walters. Cucurbits. Cab International, 1997.