Kober, G. M. (2013). Kober, George M., Papers. DigitalGeorgetown.
Chicago Style aipamenaKober, George M. Kober, George M., Papers. Washington, D.C.: DigitalGeorgetown, 2013.
MLA aipamenaKober, George M. Kober, George M., Papers. DigitalGeorgetown, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.