Gupta, P. K. Vermicomposting for sustainable agriculture - 2nd ed. - Jodhpur Agrobios 2006 - [xiii],210p. 22cm ISBN: 8177542346 Subjects--Topical Terms: FERTILIZERS, SOIL CONDITIONERS, GROWTH REGULATORSCOMPOSTSPECIFIC TECHNIQUES; EQUIPMENT, MATERIALS Dewey Class. No.: 631.875 / GUP