APA (7th ed.) Citation

Heidorn, G. E. (1972). Natural language inputs to a simulation programming system.

Chicago Style (17th ed.) Citation

Heidorn, George E. Natural Language Inputs to a Simulation Programming System. 1972.

MLA (9th ed.) Citation

Heidorn, George E. Natural Language Inputs to a Simulation Programming System. 1972.

Warning: These citations may not always be 100% accurate.