000 00286nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aPETER H. CALKINS
245 0 _aIMPROVING MARKETING OF PERISHABLE COMMODITIES
260 _bNil
260 _c1978
365 _b1.00
942 _cBK
999 _c162229
_d162229