These vivid testimonies of 135 men and women span the history of the Vietnam conflict, from its origins in the 1940s to the fall of Saigon in 1975. Sometimes detached and reflective, often raw and emotional, Americans and Vietnamese, generals and grunts, policymakers and protesters, guerrillas and CIA operatives, pilots and doctors, artists and journalists, and ordinary citizens are included.  (VNM129, $20.00)