Heck, R. H., & Thomas, S. L. (2009). An introduction to multilevel modeling techniques / Ronald H. Heck and Scott L. Thomas (2nd ed.). Routledge.
Chicago Style (17th ed.) CitationHeck, Ronald H., and Scott Loring Thomas. An Introduction to Multilevel Modeling Techniques / Ronald H. Heck and Scott L. Thomas. 2nd ed. New York ; Hove: Routledge, 2009.
MLA (9th ed.) CitationHeck, Ronald H., and Scott Loring Thomas. An Introduction to Multilevel Modeling Techniques / Ronald H. Heck and Scott L. Thomas. 2nd ed. Routledge, 2009.
Warning: These citations may not always be 100% accurate.