00270nam a2200097Ia 4500008004100000082002700041100001800068245005000086260002800136300000800164140113s9999    xx            000 0 und d  a634.614(6)(047.3)   K7  a"Zaven, A.C."  aSemi-wild oil palm and its industry in Africa  a1967bPUDOCcWageningen  a178