APA (7th ed.) Citation

Friel, S. N., Russell, S. J., & Mokros, J. R. (1990). Statistics: Middles, means and in-betweens. Dale Seymour.

Chicago Style (17th ed.) Citation

Friel, Susan N., Susan Jo Russell, and Janice R. Mokros. Statistics: Middles, Means and In-betweens. Palo Alto, Calif.: Dale Seymour, 1990.

MLA (8th ed.) Citation

Friel, Susan N., et al. Statistics: Middles, Means and In-betweens. Dale Seymour, 1990.