McBcBurney, D. (2001). Research methods (5th ed.). Thomson Asia.
Chicago Style aipamenaMcBcBurney, Donald. Research Methods. 5th ed. Bangalore: Thomson Asia, 2001.
MLA aipamenaMcBcBurney, Donald. Research Methods. 5th ed. Thomson Asia, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.