APA (7th ed.) Citation

Taft, E., Walden, J., & Engstrom, P. (1990). Postscript language reference manual (2nd ed.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Taft, Ed, Jeff Walden, and Paul Engstrom. Postscript Language Reference Manual. 2nd ed. Reading, Massachusetts [etc.]: Addison-Wesley, 1990.

MLA (9th ed.) Citation

Taft, Ed, et al. Postscript Language Reference Manual. 2nd ed. Addison-Wesley, 1990.