000
00301nam a2200121Ia 4500
008
220201s1971 xx 000 0 eng d
082
_a
339
_b
PET
100
_a
Peterson (Willis . L)
245
0
_a
Priciples of Economics Macro
260
_b
Reference ichard D.Irwin
_c
1971
300
_a
257
942
_2
ddc
999
_c
1871
_d
1871