APA aipamena

Christensen, L. B., Johnson, B., & Turner, L. A. (2011). Research methods, design, and analysis (11th ed.). Allyn & Bacon.

Chicago Style aipamena

Christensen, Larry B., Burke Johnson, and Lisa Anne Turner. Research Methods, Design, and Analysis. 11th ed. Boston: Allyn & Bacon, 2011.

MLA aipamena

Christensen, Larry B., et al. Research Methods, Design, and Analysis. 11th ed. Allyn & Bacon, 2011.