APA Style
Geus de, J.G.. (1970).
Fertilizer guide 1970, for food grains in the tropics and subtropics .
Zurich:
Centre d\'Etude de l\'Azote.
Chicago Style
Geus de, J.G..
Fertilizer guide 1970, for food grains in the tropics and subtropics.
Zurich:
Centre d\'Etude de l\'Azote,
1970.
Hard Copy.
MLA Style
Geus de, J.G..
Fertilizer guide 1970, for food grains in the tropics and subtropics.
Zurich:
Centre d\'Etude de l\'Azote,
1970.
Hard Copy.
Turabian Style
Geus de, J.G..
Fertilizer guide 1970, for food grains in the tropics and subtropics.
Zurich:
Centre d\'Etude de l\'Azote,
1970.
Hard Copy.