000 00393cam a22001337a 4500
008 180718b1993 xxu||||| |||| 00| 0 eng d
082 _aO91 Q959
100 _aKhanna, Purushottam
245 _aSustainable development
260 _aJaipur
_bRawat
_c1993
300 _ap.23-42
500 _a[In] Sustainable development, edited by N.L. Gupta and R.K. Gurgar
650 _aSustainable Development
999 _c361545
_d361545