Elementary weather for air crew trainees - USA Voorschrift, Technical Manual, 1-231 Harmonization of aircraft fixed guns and sights - USA Voorschrift, Technical Manual, 1-495 Aviation engineers - USA Voorschrift, Tentative Technical Manual, 5-255 defense space interests Hearings before the committee on science and astronautic U.S. House of Representatives 87th congress, 1st Session, 17 - 23 march 1961 national meteorological satellite program Hearings before the Committee on Science and Astronautics U.S. House of Representatives 87th Congress first session, 25-27 july 1961 Proceedings of a Conference on results of the first U.S. manned suborbital space flight, June 6, 1961, U.S. department of state auditorium / National Aeronautics … Survival in the air age : a report / by the President's Air Policy Commission Personal Papers in the Albert F.Simpson Historical Research Center / comp. and ed. by Richard E. Morse and Thomas C. Lobenstein Amerikaanse strijdkrachten : een encyclopedie van Amerika's militaire uitrusting en strategie / [red. Ray Bonds ; vert. uit het Engels] Coast artillery corps : I - USA Voorschrift, Training Regulations, No. 435 Instruments : Sights, quadrants, and fuze setters, antiaircraft artillery - USA Voorschrift, Technical Regulations, No. 1310-50 Field artillery : II - USA Voorschrift, Training Regulations, No. 430