Commercial fertilizers
Collings , Gilbeart H.
Commercial fertilizers - 3rd ed. - Bombay TATA Mcgraw-hill Publishing Com.Ltd. 1962 - [xi] , 617 p. Illustration 23 cm.
FERTILIZERS
AGRICULTURE
NUTRITION
631.8 / COL
Commercial fertilizers - 3rd ed. - Bombay TATA Mcgraw-hill Publishing Com.Ltd. 1962 - [xi] , 617 p. Illustration 23 cm.
FERTILIZERS
AGRICULTURE
NUTRITION
631.8 / COL