Chaps, B., & Troester, R. R. (1989). Oral history interview with Bob Chaps.
Dyfyniad Arddull ChicagoChaps, Bob, and Rosalie Riegle Troester. Oral History Interview with Bob Chaps. 1989.
Dyfyniad MLAChaps, Bob, and Rosalie Riegle Troester. Oral History Interview with Bob Chaps. 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.