APA (7th ed.) Citation

Packer, T. J., Coleby, J. R., & Galvin, T. J. (1979). Discrete/continuous simulation language: A user guide. Weapons Systems Research Laboratory.

Chicago Style (17th ed.) Citation

Packer, T. J., J. R. Coleby, and T. J. Galvin. Discrete/continuous Simulation Language: A User Guide. Adelaide: Weapons Systems Research Laboratory, 1979.

MLA (8th ed.) Citation

Packer, T. J., et al. Discrete/continuous Simulation Language: A User Guide. Weapons Systems Research Laboratory, 1979.