APA (7th ed.) Citation

(2013). Understanding statistics using R / Randall Schumacker, Sara Tomek.

Chicago Style (17th ed.) Citation

Understanding Statistics Using R / Randall Schumacker, Sara Tomek. 2013.

MLA (9th ed.) Citation

Understanding Statistics Using R / Randall Schumacker, Sara Tomek. 2013.

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