TY  - BOOK
AU  - Knowles,Frank
AU  - Watkin,J.Elphin
TI  - A practical course in agricultural chemistry for senior students of agriculture dairying, Horticulture and Poultry Husbandry
U1  - 630.24 
PY  - 1960///
CY  - London
PB  - Macmillan
KW  - Agricultural chemistry
KW  - Soil chemistry
N1  - Includes index
ER  -