APA (7th ed.) Citation

Robbins, J. (1990). Mastering dos (2nd ed.). Perfect Bound.

Chicago Style (17th ed.) Citation

Robbins, Judd. Mastering Dos. 2nd ed. Quezon City: Perfect Bound, 1990.

MLA (9th ed.) Citation

Robbins, Judd. Mastering Dos. 2nd ed. Perfect Bound, 1990.