APA (7th ed.) Citation

Robbins, J. (1989). Understanding DOS 3.3. Sybex.

Chicago Style (17th ed.) Citation

Robbins, Judd. Understanding DOS 3.3. San Francisco: Sybex, 1989.

MLA (9th ed.) Citation

Robbins, Judd. Understanding DOS 3.3. Sybex, 1989.

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