APA Citation

Geus, J. d., & Geus, J. d. (1970). Fertilizer guide for food grains in the tropics and subtropics. Zurich: Centre d'Etude de l'Azote.

Chicago Style Citation

Geus, J.G. de, and J.G. de Geus. Fertilizer Guide for Food Grains in the Tropics and Subtropics. Zurich: Centre d'Etude de l'Azote, 1970.

MLA Citation

Geus, J.G. de, and J.G. de Geus. Fertilizer Guide for Food Grains in the Tropics and Subtropics. Zurich: Centre d'Etude de l'Azote, 1970.

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