Zwick, J., & Troester, R. R. (1990). Oral history interview with Joachim Zwick.
Dyfyniad Arddull ChicagoZwick, Joachim, and Rosalie Riegle Troester. Oral History Interview with Joachim Zwick. 1990.
Dyfyniad MLAZwick, Joachim, and Rosalie Riegle Troester. Oral History Interview with Joachim Zwick. 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.