APA (7th ed.) Citation

Christensen, R. (2011). Plane answers to complex questions: The theory of linear models (4. ed.). Springer.

Chicago Style (17th ed.) Citation

Christensen, Ronald. Plane Answers to Complex Questions: The Theory of Linear Models. 4. ed. New York, NY [u.a.]: Springer, 2011.

MLA (9th ed.) Citation

Christensen, Ronald. Plane Answers to Complex Questions: The Theory of Linear Models. 4. ed. Springer, 2011.