Shukla, R.S. text New Delhi S. Chand & Company 1972 eng 210 p : ill. ; 21 cm R.S. Shukla ECOLOGY ECOSYSTEM ADAPTATION 574 574 SHU p 231005 20231005094130 INLIS000000000000278 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)