APA (7th ed.) Citation

Barden, W. T. (1990). DOS problem solver. Scott, Foresman.

Chicago Style (17th ed.) Citation

Barden, William T. DOS Problem Solver. Glenview, Ill.: Scott, Foresman, 1990.

MLA (9th ed.) Citation

Barden, William T. DOS Problem Solver. Scott, Foresman, 1990.