Cita APA (7th ed.)

Malavolta, E., & Haag, H. P. (1962). On the mineral nutrition of some tropical crops. International Potash Institute.

Cita Chicago (17th ed.)

Malavolta, E., i H. P. Haag. On the Mineral Nutrition of Some Tropical Crops. Berna: International Potash Institute, 1962.

Cita MLA (9th ed.)

Malavolta, E., i H. P. Haag. On the Mineral Nutrition of Some Tropical Crops. International Potash Institute, 1962.