Cita APA (7a ed.)

International Potash Institute. (1980). Physiological aspects of crop productivity. International Potash Institute.

Cita Chicago Style (17a ed.)

International Potash Institute. Physiological Aspects of Crop Productivity. Wageningen: International Potash Institute, 1980.

Cita MLA (8a ed.)

International Potash Institute. Physiological Aspects of Crop Productivity. International Potash Institute, 1980.