000 00330nam a2200157Ia 4500
082 _a333.89
_bG977.PN
100 _aGupta, Raj Kumar
245 _aPlanning natural resources
_b
260 _aNew Delhi
_bNavyug
_c1971
300 _av, 269p.
500 _a
690 _a
700 _a
964 _a
_b
_c
_d
_e
_f
_g
921 _a6626
999 _c6626
_d6626