APA (7th ed.) Citation

Townsend, J. J., & Lindsay, J. (1993). Using Paradox for Windows. Que Corp.

Chicago Style (17th ed.) Citation

Townsend, James J., and Jenifer Lindsay. Using Paradox for Windows. Carmel, Ind: Que Corp, 1993.

MLA (9th ed.) Citation

Townsend, James J., and Jenifer Lindsay. Using Paradox for Windows. Que Corp, 1993.