APA (7th ed.) Citation

Byrkit, Schaefer, & Skillings. (1987). Statistics today: A comprehensive introduction. Benjamin/Cummings Pub Co.

Chicago Style (17th ed.) Citation

Byrkit, Schaefer, and Skillings. Statistics Today: A Comprehensive Introduction. Menlo Park, Calif: Benjamin/Cummings Pub Co, 1987.

MLA (8th ed.) Citation

Byrkit, et al. Statistics Today: A Comprehensive Introduction. Benjamin/Cummings Pub Co, 1987.