APA aipamena

Bordens, K. S., & Abbott, B. B. (2007). Research design and methods: A process approach (International, 6th ed.). McGraw-Hill.

Chicago Style aipamena

Bordens, Kenneth S., and Bruce B. Abbott. Research Design and Methods: A Process Approach. International, 6th ed. Boston: McGraw-Hill, 2007.

MLA aipamena

Bordens, Kenneth S., and Bruce B. Abbott. Research Design and Methods: A Process Approach. International, 6th ed. McGraw-Hill, 2007.