TY  - BOOK
AU  - S.K. Mitra
TI  - Effects of Continuous Cultivations and Agronomic Practices on Soil Microarthropods : a Unifying Concept of Agriculture and Ecolo
U1  - 595.2 
PY  - 1993///
CY  - Calcutta
PB  - Zoological Survey of India
ER  -