Zook, A., Zook, A., & Troester, R. R. (1989). Oral history interview with Albert and Anna Zook.
Čikaški stil citiranja (17. izdanje)Zook, Albert, Anna Zook, i Rosalie Riegle Troester. Oral History Interview with Albert and Anna Zook. 1989.
MLA način citiranja (8. izdanje)Zook, Albert, et al. Oral History Interview with Albert and Anna Zook. 1989.
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