Παραπομπή APA

Snijders, T. A. B., & Bosker, R. J. (1999). Multilevel analysis: An introduction to basic and advanced multilevel modeling. London: SAGE Publications.

Παραπομπή Chicago Style

Snijders, Tom A. B., and Roel J. Bosker. Multilevel Analysis: An Introduction to Basic and Advanced Multilevel Modeling. London: SAGE Publications, 1999.

Παραπομπή MLA

Snijders, Tom A. B., and Roel J. Bosker. Multilevel Analysis: An Introduction to Basic and Advanced Multilevel Modeling. London: SAGE Publications, 1999.

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