APA (7th ed.) Citation

Gresh, L. H., Weinberg, R., & Sempau, D. (2001). Superhackers. Umbriel.

Chicago Style (17th ed.) Citation

Gresh, Lois H., Robert Weinberg, and David Sempau. Superhackers. Barcelona: Umbriel, 2001.

MLA (9th ed.) Citation

Gresh, Lois H., et al. Superhackers. Umbriel, 2001.