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100 _aThompson, Arthur
245 _aEconomics of the firm
260 _aNew Jercey
_bPrentice hall
_c1977
300 _a638 p.
_b22 cm.
_cHB
964 _b
_c
_d
_e
_f
_g_
997 _a9442 C
999 _c7353
_d7353