Handbooks, manuals, etc Handbooks, manual, etc 10 Public administration 10 United States 9 Office practice in government 7 Armed Forces 6 Army 5 Law and legislation 5 Military art and science 5 Combat survival 4 Education 4 History 4 Military intelligence 4 Politics and government 4 Study skills 4 Teaching 4 Vehicles, Military 4 Counterinsurgency 3 Educational leadership 3 Handbook, manuals 3 Handbooks, manuals 3 Handbooks, manuals etc 3 Income tax 3 Intelligence service 3 Learning 3 Management 3 Private security services 3 School management and organization 3 Supplies and stores 3 Survival after airplane accidents, shipwrecks, etc 3