APA Edition Citation

Groff, J. R., & Weinberg, P. N. (1988). Understanding UNIX: A conceptual guide (Ed.2.).

Chicago Edition Citation

Groff, James R., and Paul N. Weinberg. Understanding UNIX: A Conceptual Guide. Ed.2. Singapore, Tech Publications, 1988.

MLA Edition Citation

Groff, James R., and Paul N. Weinberg. Understanding UNIX: A Conceptual Guide. Ed.2. 1988.

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