APA (7th ed.) Citation

Schulman, A. (1990). Undocumented DOS: A programmer's guide to reserved MS-DOS functions and data structures. s.n.

Chicago Style (17th ed.) Citation

Schulman, Andrew. Undocumented DOS: A Programmer's Guide to Reserved MS-DOS Functions and Data Structures. s.n, 1990.

MLA (8th ed.) Citation

Schulman, Andrew. Undocumented DOS: A Programmer's Guide to Reserved MS-DOS Functions and Data Structures. s.n, 1990.

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