TY  - BOOK
AU  - Knowles, Frank
AU  - Watkin, J. Elphin
TI  - A practical course in agricultural chemistry
U1  - 630.24 K 73 
PY  - 1950///
CY  - London
PB  - The macmillion company
KW  - Agriculture
KW  - Chemistry & Practical Course
ER  -