APA (7th ed.) Citation

Halliday, C. M., Gobel, D. P., & Minasi, M. (1989). Using OS/2. Que Corp.

Chicago Style (17th ed.) Citation

Halliday, Caroline M., David P. Gobel, and Mark Minasi. Using OS/2. Carmel, IN: Que Corp, 1989.

MLA (9th ed.) Citation

Halliday, Caroline M., et al. Using OS/2. Que Corp, 1989.