Franklin

MLA

Aiken, Leona S, and Stephen G West. Multiple Regression : Testing and Interpreting Interactions. Newbury Park, Calif.: Sage Publications, 1991.

APA

Aiken, L. S, & West, S. G. (1991). Multiple regression : testing and interpreting interactions. Newbury Park, Calif.: Sage Publications.

Chicago

Aiken, Leona S., and Stephen G West. Multiple Regression: Testing and Interpreting Interactions. Newbury Park, Calif.: Sage Publications, 1991.