000 00274nam a2200085Ia 4500
001 MPKV110091
008 120911s9999 xx 000 0 und d
245 _aCanadian Journal of Agricultural Economics Vol.32-33 Part No.1-2
_c;
260 _aCanada
_b Canadian Agril. Economics
_c1985
999 _c73413
_d73413