00397    a2200121   4500020001500000082001800015100002200033245009900055260005100154300001900205650002200224700002900246  a9054480157  a381.1707bHOU  aHoutkamp. John A.  aCommodity auction in tropical africaba survey of the african tea, tobacco and coffee auctions  aNetherlandbAfrican Stadies Centerc1993g1993  a[x],98p.c24cm  aInternal Commerce  aLaan, H. laurens Van Der