APA (7th ed.) Citation

Robbins, J. (1987). Mastering DOS (2nd ed.). Perfect Bound Pub., & Trading.

Chicago Style (17th ed.) Citation

Robbins, Judd. Mastering DOS. 2nd ed. Quezon City: Perfect Bound Pub., & Trading, 1987.

MLA (9th ed.) Citation

Robbins, Judd. Mastering DOS. 2nd ed. Perfect Bound Pub., & Trading, 1987.

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