Schaeffer-Duffy, S., & Troester, R. R. (1988). Oral history interview with Scott Schaeffer-Duffy.
Chicago Style aipamenaSchaeffer-Duffy, Scott, and Rosalie Riegle Troester. Oral History Interview with Scott Schaeffer-Duffy. 1988.
MLA aipamenaSchaeffer-Duffy, Scott, and Rosalie Riegle Troester. Oral History Interview with Scott Schaeffer-Duffy. 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.