Booth, W. C., Colomb, G. G., Williams, J. M., Bizup, J., & FitzGerald, W. T. (2016). The craft of research (Fourth edition.). The University of Chicago Press.
Chicago Style aipamenaBooth, Wayne C., Gregory G. Colomb, Joseph M. Williams, Joseph Bizup, and William T. FitzGerald. The Craft of Research. Fourth edition. Chicago: The University of Chicago Press, 2016.
MLA aipamenaBooth, Wayne C., et al. The Craft of Research. Fourth edition. The University of Chicago Press, 2016.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.