Steed, R., & Riegle, R. G. (1998). Oral history interview with Robert Steed.
Chicago Style aipamenaSteed, Robert, and Rosalie G. Riegle. Oral History Interview with Robert Steed. 1998.
MLA aipamenaSteed, Robert, and Rosalie G. Riegle. Oral History Interview with Robert Steed. 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.