TY  - BOOK
AU  - Gray,T.R.G.(Timothy R.G.),1937-
AU  - Williams,S.T.1937-
TI  - Soil micro-organisms
T2  - University reviews in botany, 2
SN  - 9780050023228
U1  - 576 
PY  - 1971///
CY  - London
PB  - Longman
KW  - Soil microbiology
KW  - Sols -- Microbiologie
ER  -