ENGINEERS INDIA RESEARCH INSTITUTE HAND BOOK OF BIOFERTILIZERS & VERMI CULTURE HAND BOOK OF BIOFERTILIZERS & VERMI CULTURE - - NEW DELHI EIR INSTITUTE 2010 - 345 EDP CELL BOOKS ISBN: 9.78819E+12 Subjects--Topical Terms: ENTREPRENEURSHIP BIOFERTILIZERS CULTURE Dewey Class. No.: 660.66 ERI / ENG