Kothari, D.P. Singal, K.C, Ranjan, Rakesh Renewable energy sources and emerging technologies / - 2nd ed. - Delhi, PHI Learning Private Limited, c2011 - xxii, 434 p. : ill.; 23 cm. ISBN: 9788120344709 LC Class. No.: D4496 Dewey Class. No.: 333.7 / KOT