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100 _aOwen,Wyn F
245 _aGuide to graduatestudy in economics and agriculture economics
260 _aIrwin, Richard
_c1977
300 _a328 p.
_b22 cm.
_cPB
630 _aEconomics
964 _b
_c
_d
_e
_f
_g_
997 _a9976 C
999 _c7446
_d7446