515.35 SIMMONS, GEORGE F . DIFFERENTIAL EQUATIONS , THEORY TECHNIQUE AND PRATICE / / G . F . SIMMONS & S . G . KRANTZ. - NEW DELHI: : TATA MCGRAW-HILL PUBLISHING CO. PVT.LTD,, 2007 ( 2017 RPT ). x , 534 P.. : PAPER BACK 9780072863154 : 250/- 750/- * DIFFERENTIAL EQUATIONS. * KRANTZ, STEVEN G . * Title