APA (7th ed.) Citation

Teo, K. L., Goh, C., & Wong, K. (1991). A unified computational approach to optimal control problems.

Chicago Style (17th ed.) Citation

Teo, Kok Lay, C. Goh, and K. Wong. A Unified Computational Approach to Optimal Control Problems. 1991.

MLA (9th ed.) Citation

Teo, Kok Lay, et al. A Unified Computational Approach to Optimal Control Problems. 1991.