APA Citation

De Geus, J. G. (1967). Fertilizer guide for tropical and subtropical farming. Zurich: Centre d'Etude de l'Azote.

Chicago Style Citation

De Geus, J. G. Fertilizer Guide for Tropical and Subtropical Farming. Zurich: Centre d'Etude de l'Azote, 1967.

MLA Citation

De Geus, J. G. Fertilizer Guide for Tropical and Subtropical Farming. Zurich: Centre d'Etude de l'Azote, 1967.

Warning: These citations may not always be 100% accurate.