Salpekar, Aaradhana Encyclopedia of Ecology and Environment Vol-10 Global Environmental Issues - 14 - New Delhi Bharatiya Khadi Gramodyog Vikas Abhikaran 2007 - 352 HB - X . ISBN: 81-89775-00-6 Subjects--Topical Terms: General encyclopedic works(030) Dewey Class. No.: 030 SAL