William Ury/ William Ury (NRT)
(2)
Roger Fisher/ William Ury
(1)
Roger Fisher/ William Ury/ Bruce Patton (EDT)
(1)
Roger Fisher/ William Ury/ Bruce Patton (EDT)/ Bruce Patton
(1)
Roger Fisher/ William Ury/ Bruce Patton/ Murphy Guyer (NRT)
(1)
Roger Fisher/ William Ury/ Murphy Guyer (NRT)
(1)