TY  - BOOK
AU  - Gray, T. R. G.
AU  - Parkinson, D.
TI  - The ecology of soil bacteria; an international symposium
U1  - 631.46 
PY  - 1968///
CY  - Aylesbury, Bucks
PB  - University of Toronto
KW  - Bacterias nitrificantes
KW  - Suelos
KW  - Microbiología
ER  -