X/Open portability guide. [Volume 1], XSI Commands and utilities - X/Open Company (Englewood Cliffs, N.J. : Prentice Hall, 1989)
v. 1. XSI commands and utilities -- v. 2. XSI system interface and headers -- v. 3. XSI supplementary definitions -- v. 4. Programming languages -- v. 6. Window management.
"August 1988"--V. 4, 6, t.p. verso.
"December 1988"--V. 1-3, t.p. verso.
Keywords: UNIX (Computer file); Software compatibility