Froehlich, R. A. (1986). The IBM PC, and compatibles, free software catalog and directory: The what, where, why, and how of selecting, locating, acquiring, and using free software. Dilithium Pr.
Chicago-Zitierstil (17. Ausg.)Froehlich, Robert A. The IBM PC, and Compatibles, Free Software Catalog and Directory: The What, Where, Why, and How of Selecting, Locating, Acquiring, and Using Free Software. New York: Dilithium Pr, 1986.
MLA-Zitierstil (9. Ausg.)Froehlich, Robert A. The IBM PC, and Compatibles, Free Software Catalog and Directory: The What, Where, Why, and How of Selecting, Locating, Acquiring, and Using Free Software. Dilithium Pr, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.