Catapult, I. (1992). Microsfot Windows 3.1 step by step. Redmond, Wash: Microsoft Press.
Chicago Style CitationCatapult, Inc. Microsfot Windows 3.1 Step By Step. Redmond, Wash: Microsoft Press, 1992.
MLA CitationCatapult, Inc. Microsfot Windows 3.1 Step By Step. Redmond, Wash: Microsoft Press, 1992.
Warning: These citations may not always be 100% accurate.