army air forces aviation psychology program research reports Psychological research on operational training in the continental air forces / ed by Meredith P. Crawford ...[et al] men-at-arms series Apaches / Jason Hook ; illustrated by Richard Hook atlantic policy studies Atlantic idea and its European rivals / Harold van B. Cleveland ; [forw. by Charles M. Spofford] adelphi papers Ballistic-missile defence and strategic stability / Dean A. Wilkening