Hillway, T. (1964). Introduction to research (2d ed.). Houghton Mifflin.
Chicago Style aipamenaHillway, Tyrus. Introduction to Research. 2d ed. Boston: Houghton Mifflin, 1964.
MLA aipamenaHillway, Tyrus. Introduction to Research. 2d ed. Houghton Mifflin, 1964.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.