APA (7th ed.) Citation

Ulgen, O. M., Thomasma, T., & Mao, Y. (1989, October). Object oriented toolkits for simulation program generators. Proceedings of the 21st conference on Winter simulation, 593-600. https://doi.org/10.1145/76738.76815

Chicago Style (17th ed.) Citation

Ulgen, O. M., T. Thomasma, and Y. Mao. "Object Oriented Toolkits for Simulation Program Generators." Proceedings of the 21st Conference on Winter Simulation Oct. 1989: 593-600. https://doi.org/10.1145/76738.76815.

MLA (9th ed.) Citation

Ulgen, O. M., et al. "Object Oriented Toolkits for Simulation Program Generators." Proceedings of the 21st Conference on Winter Simulation, Oct. 1989, pp. 593-600, https://doi.org/10.1145/76738.76815.