United Nations
Reducing fertilizer costs / United Nations - New York, United Nations 1974 - 44p ill; 24cm - Fertilizer Industry Series .
Includes Bibliographical references
Fertilizers
668.62 / UNI
Reducing fertilizer costs / United Nations - New York, United Nations 1974 - 44p ill; 24cm - Fertilizer Industry Series .
Includes Bibliographical references
Fertilizers
668.62 / UNI