TY  - BOOK
AU  - Pontificia Academia Scientiarvm
TI  - Organic matter and soil fertility
U1  - 631.4206 
PY  - 1968///
CY  - Amsterdam
PB  - North - Holland Publishing Co
N1  - Pontificia Academia Scientiarvm: Organic matter and soil fertility.  Amsterdam.  North - Holland Publishing Co, 1968.--(631.4206PON)
ER  -