Handbooks, manuals, etc 12 PRIME computer 8 Computer programming 3 COBOL (Computer program language) 2 MIDAS (Electronic computer system) 2 BASIC (Computer program language) 1 Database management 1 FORTRAN (Computer program language) 1 File organization (Computer science) 1 INFORMATION (Computer system) 1 Programming (Electronic computers) 1 SIMPLE 1 SPSS (Computer file) 1