TY  - BOOK
AU  - Collings,Gilbeart H.
TI  - Commercial fertilizer: their sourve and use
U1  - Ag412 
PY  - 1949///
KW  - English Literature
N1  - Ag mean  Agriculture Page 512-519 in A-Z Register (Acc. No. Ag1-Ag229) & Page 564-572 (Acc. No. Ag230-Ag469)
ER  -