Gaya APA

Bickel, R., Kenny, D, A. (2008). Multilevel analysis for applied research : it`s just regression (1 st Indian sub-continent Edition). Hoboken, NJ: John Wiley.

Gaya MLA

Bickel, Robert., Kenny, David, A. "Multilevel analysis for applied research : it`s just regression". 1 st Indian sub-continent Edition Hoboken, NJ: John Wiley, 2008. Text.