APA (7th ed.) Citation
Christensen, R. (2011). Plane Answers to Complex Questions: <The> Theory of Linear Models (4th Edition.). Springer.
Chicago Style (17th ed.) Citation
Christensen, Ronald. Plane Answers to Complex Questions: <The> Theory of Linear Models. 4th Edition. New York: Springer, 2011.
MLA (9th ed.) Citation
Christensen, Ronald. Plane Answers to Complex Questions: <The> Theory of Linear Models. 4th Edition. Springer, 2011.
Warning: These citations may not always be 100% accurate.