TY  - BOOK
AU  - Richards B.N.
TI  - Introduction to the soil Ecosystem
SN  - 0582441307
AV  - QH 541.5 .S6 1974 0176
PY  - 1976///
CY  - New York 
PB  - Longman group limited 
KW  - Soil ecology
N1  - Includes index
ER  -