APA (7th ed.) Citation

Guenther, J., & Ocoboc, E. (1991). AutoCAD methods and macros (2nd ed.). Tab Professional and Reference Books.

Chicago Style (17th ed.) Citation

Guenther, Jeff, and Ed Ocoboc. AutoCAD Methods and Macros. 2nd ed. Blue Ridge Summit, Pa.: Tab Professional and Reference Books, 1991.

MLA (9th ed.) Citation

Guenther, Jeff, and Ed Ocoboc. AutoCAD Methods and Macros. 2nd ed. Tab Professional and Reference Books, 1991.