TY  - BOOK
AU  - Campell, R. 
TI  - Microbial ecology 
T2  - (Basic microbiology)
PY  - 1983///
CY  - Oxford 
PB  - Blackwell Scientific
KW  - Microbial ecology
KW  - Biotic communities
N1  - Ref. at the end of each chap
ER  -