APA Citation

Friendly, M., & Friendly, M. (1991). SAS system for statistical graphics (1. edition.). U.S.A.: SAS Institute.

Chicago Style Citation

Friendly, Michael, and Michael Friendly. SAS System for Statistical Graphics. 1. edition. U.S.A.: SAS Institute, 1991.

MLA Citation

Friendly, Michael, and Michael Friendly. SAS System for Statistical Graphics. 1. edition. U.S.A.: SAS Institute, 1991.

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