APA (7th ed.) Citation

Carr, L., Rahtz, S., & Hall, W. (1991). Experiments with TeX and hyperactivity. TeX Users Group.

Chicago Style (17th ed.) Citation

Carr, L., S. Rahtz, and W. Hall. Experiments with TeX and Hyperactivity. TeX Users Group, 1991.

MLA (9th ed.) Citation

Carr, L., et al. Experiments with TeX and Hyperactivity. TeX Users Group, 1991.