APA (7th ed.) Citation

Liang, T., Seiferas, J. I. S., & Vitányi, P. M. (1994). Two heads are better than two tapes.

Chicago Style (17th ed.) Citation

Liang, Tao, Joel I. Seiferas Seiferas, and Paul M. Vitányi. Two Heads Are Better than Two Tapes. Amsterdam, 1994.

MLA (9th ed.) Citation

Liang, Tao, et al. Two Heads Are Better than Two Tapes. 1994.