Cita APA (7th ed.)

WORTMAN, S. (1978). To feed this World: The challenge and the strategy. The Johns Hopkins University.

Cita Chicago (17th ed.)

WORTMAN, Sterling. To Feed This World: The Challenge and the Strategy. Baltimore: The Johns Hopkins University, 1978.

Cita MLA (9th ed.)

WORTMAN, Sterling. To Feed This World: The Challenge and the Strategy. The Johns Hopkins University, 1978.