TY - BOOK AU - SAMPAT MUKHERJEE TI - REFRESHER COURSE IN ENVIRONMENTAL STUDIES SN - 81-87169-04-4 U1 - 614.7/MUK/REF PY - 2000/// CY - KOLKATA PB - SARAT BOOK DISTRUBUTORS KW - INCIDENCE & PREVENTION OF DISEASE KW - MEDICAL SCIENCE ER -