See the following documentation for additional information on topics presented in this book:
ISO C: ISO/IEC 9899:1990, Programming Languages --- 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 Programmer's Reference, Revision 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.