Amerika en de internationale samenwerking / Walter Lippmann geschiedenis van Dr. Wassell / James Hilton ; [uit het Engelsch vert.] modern economic issues Defense and disarmament : the economics of transition / edited by Roger E. Bolton Systems analysis and policy planning : applications in defense / Edited by E. S. Quade and W. I. Boucher Earthquake history of the United States : California and Western Nevada / by Harry O. Wood, Maxwell W. Allen, N.H. Heck / U.S. Department of …