TY  - BOOK
AU  - Gilbeart H. Collings
TI  - Commercial fertilizers : Their sources and use. Ed 2
U1  - 631.8 
PY  - 1938///
CY  - Philadelphia
PB  - P Blakiston`s Son and co Inc
N1  - Gilbeart H. Collings: Commercial fertilizers : Their sources and use. Ed 2.  (2nd Ed)  Philadelphia.  P Blakiston`s Son and co Inc, 1938.--(631.8COL)
ER  -