APA (7th ed.) Citation

Kreft, I. G. G., & Leeuw, J. d. (1998). Introducing multilevel modeling. Sage.

Chicago Style (17th ed.) Citation

Kreft, Ita G. G., and Jan de Leeuw. Introducing Multilevel Modeling. London, Thousand Oaks, Calif: Sage, 1998.

MLA (9th ed.) Citation

Kreft, Ita G. G., and Jan de Leeuw. Introducing Multilevel Modeling. Sage, 1998.