このマニュアルで紹介するトピックについての追加情報は、次のドキュメントを参照してください。
ISO C:ISO/IEC 9899: 1990,『Programming Langages --- C』(technically identical to ANS X3.159-1989, Programming Language C)
ISO/IEC 9945-1: 1990, (IEEE Standard 1003.1)『Information Technology - Portable Operating System Interface (POSIX) - Part 1: System Application Program Interface (API) [C Language]』
ISO/IEC DIS 9945-2: 1992, (IEEE Standard 1003.2-Draft) 『Information Technology - Portable Operating System Interface (POSIX) - Part 2: Shell and Utilities』
OSF/Motif 1.2:『OSF Motif 1.2』Open Software Foundation, Prentice Hall, 1992, ISBN: 0-13-643115-1
Scheifler, W. R.,『X Window System, The Complete Reference to Xlib, Xprotocol, ICCCM, XLFD - X Version 11, Release 5』 Digital Press, 1992, ISBN: 1-55558-088-2
X/Open:『X/Open CAE Specification System Interface Definition』Issue 4, X/Open Company Ltd., 1992, ISBN: 1-872630-46-4
X/Open:『X/Open CAE Specification Commands and Utilities』Issue 4, X/Open Company Ltd., 1992, ISBN: 1-872630-48-0
X/Open:『X/Open CAE Specification System Interface and Headers』Issue 4, X/Open Company Ltd., 1992, ISBN: 1-872630-47-2
X/Open:『X/Open Internationalization Guide』X/Open Company Ltd., 1992, ISBN: 1-872630-20-0
ISO/IEC 10646-1: 1993 (E):『Information Technology - Universal Multi-Octet Coded Character Set (UCS). Part 1: Architecture and Basic Multilingual Plane』