APA Edition Citation

Heck, H. (1992). Unix: Working with Unix and Xenix.

Chicago Edition Citation

Heck, Hand-Josef. Unix: Working with Unix and Xenix. Prisma Computer course, 1992.

MLA Edition Citation

Heck, Hand-Josef. Unix: Working with Unix and Xenix. 1992.

Warning: These citations may not always be 100% accurate.