000 00257nam a2200109Ia 4500
008 221001s1972 xx 000 0 eng d
082 _a954.025 SRI (H)
100 _aKHANNA (K.K.)
245 0 _aWorld resources and trade
260 _c1972
942 _2ddc
_cBK
999 _c47796
_d47796