000 00277nam a22001217a 4500
003 OSt
008 240905b |||||||| |||| 00| 0 eng d
082 _a338.1
_bA45
245 _aAmerican J. Agricultural Economics Vol.-62
260 _c1980
300 _a1-5
942 _2ddc
_cPER
999 _c45151
_d45151