Book 22,515 Government Document 2,816 Electronic 491 Conference Proceeding 415 Serial 316 Journal 291 Unknown 171 Thesis 160 Manuscript 28 Reference Material 11 Newspaper 4 Photo 4 Audio 3 Book Chapter 3 Map 3 see all ...

U - Military Science 23,467

Rand Corporation 760 United States General Accounting Office 682 United States Air Force 578 Project Air Force (U.S.) 509 Anne S.K. Brown Military Collection 235 ebrary, Inc 200 Society of Photo-optical Instrumentation Engineers 199 United States Army. Corps of Engineers 193 United States Department of the Air Force 193 Air University (U.S.) Press 146 United States Army. Signal Corps 121 Air Force History and Museums Program (U.S.) 105 John Winston Graham Aeronautical Collection (Beinecke Rare Book and Manuscript Library) 90 United States War Department 80 National Defense Research Institute (U.S.) 75 United States Department of the Army 68 United States Air Force. Office of Air Force History 63 United States Congressional Budget Office 59 United States War Dept 59 United States Congress. House. Committee on Armed Services 57 United States Department of Defense 57 SPIE (Society) 53 De Gruyter 51 Society of Photo-Optical Instrumentation Engineers 51 United States USAF Scientific Advisory Board 50 Gunston, Bill 49 National Research Council (U.S.) Board on Army Science and Technology 48 Project Air Force (U.S.) Resource Management Program 46 United States Army 45 Germany Heer. Oberkommando 44 see all ...

English 16,287 German 1,378 French 1,314 Russian 1,232 Italian 879 Chinese 534 Spanish 507 Polish 292 Japanese 227 Hebrew 197 Korean 154 Dutch 140 Indonesian 135 Portuguese 135 Czech 121 Arabic 62 Vietnamese 58 Swedish 57 Finnish 54 Ukrainian 47 Turkish 45 Latin 43 Hungarian 42 Romanian 35 Greek 34 Persian 30 Danish 29 Marathi 29 Norwegian 26 Undetermined 24 see all ...

History 4,232 Biography 1,287 Electronic books 1,074 Congresses 880 Biographies 708 Military history 565 Conference papers and proceedings 540 Pictorial works 536 Periodicals 460 Handbooks, manuals, etc 351 Early works to 1800 280 Handbooks and manuals 168 Autobiographies 128 Early works 127 Dictionaries 118 Sources 115 Personal narratives 111 Government publications 109 Case studies 107 Bibliography 88 Illustrated works 82 Exhibitions 76 Catalogs 66 Guidebooks 59 Technical reports 57 Maps 56 Academic theses 52 Anecdotes 49 Juvenile literature 48 Naval history 47 see all ...

20th century 1,485 1900-1999 720 1939-1945 585 1914-1918 165 21st century 156 1900 - 1999 155 19th century 132 1939 - 1945 116 20e siècle 113 To 1500 112 Early works to 1800 100 17th century 87 18th century 82 Geschichte 77 16th century 69 World War, 1939-1945 68 2000-2099 63 1633-1707 55 1989- 42 1991 34 1914-1945 33 Civil War, 1936-1939 32 1961 - 1975 30 1879-1936 29 1800-1899 28 20e siècle 28 Medieval, 500-1500 26 1914 - 1918 24 1961-1975 24 1700-1799 23 see all ...

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