00260nam a2200097Ia 4500080001700000100002000017245006900037260002500106300001300131583001800144  a09.05.08 Y42  aYeboah, Dickson  aTariffs : (theory, bindings, rounds of negotiations, techniques)  b[s.n.]a[S.l.]c2000  a7 leaves  c9/29/06kJOYD