581.1 PUREKAR, P . N . PLANT PHYSIOLOGY & ECOLOGY / / P . N . PUREKAR , R . B . SINGH & P . B . MISTRY. - DELHI: : SULTAN CHAND & CO.,, 1986. x , 136 P.. * PHYSIOLOGY - PLANT. ECOLOGY - PLANT. * MISTRY, P . B .SINGH, R . B . * Title
Technology Private Limited