Mechanical engineering Periodicals 23 Machinery 22 Handbooks, manuals, etc 18 Data processing 15 Engineering design 14 Congresses 13 Computer-aided design 10 Mechanics, Applied 10 History 7 Laboratory manuals 6 Design and construction 5 Power (Mechanics) 5 Catalogs 4 Dictionaries 4 Electric engineering 4 Engineering 4 Equipment and supplies 4 Machine design 4 Machinery industry 4 Mechanics 4 Metal-work 4 Microcomputers 4 Power resources 4 Research 4 Automobiles 3 Maintenance and repair 3 Mechanical movements 3 Metals 3 Problems, exercises, etc 3