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040 _aMAIN
041 _aEnglish
100 _aGUPTA, V.K.
245 0 _aWorld Resources and Trade
_bWorld Resources and Trade._3rd Ed, Delhi : Sultan Chand, 1973
_cV.K. GUPTA
250 _a3rd
260 _c1973
_bSultan Chand
_aDelhi
942 _cBK
999 _c62966
_d62966