APA (7th ed.) Citation

Smithy-Willis, D., Willis, J., & Miller, M. K. (1983). How to use SuperCalc [trade mark symbol]. Dilithium Press.

Chicago Style (17th ed.) Citation

Smithy-Willis, Deborrah, Jerry Willis, and Merl K. Miller. How to Use SuperCalc [trade Mark Symbol]. Beaverton, Or.: Dilithium Press, 1983.

MLA (9th ed.) Citation

Smithy-Willis, Deborrah, et al. How to Use SuperCalc [trade Mark Symbol]. Dilithium Press, 1983.