APA Style
De Geus, J.G.. (1970).
Fertilizer Guide for Food Grains in the Tropics and Subtropics (IV).
Zurich:
Centre d\'Etude de l\'Azote.
Chicago Style
De Geus, J.G..
Fertilizer Guide for Food Grains in the Tropics and Subtropics.
IV
Zurich:
Centre d\'Etude de l\'Azote,
1970.
Hard Copy.
MLA Style
De Geus, J.G..
Fertilizer Guide for Food Grains in the Tropics and Subtropics.
IV
Zurich:
Centre d\'Etude de l\'Azote,
1970.
Hard Copy.
Turabian Style
De Geus, J.G..
Fertilizer Guide for Food Grains in the Tropics and Subtropics.
IV
Zurich:
Centre d\'Etude de l\'Azote,
1970.
Hard Copy.