APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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