Cullen, M. D., Cullen, A., & Riegle, R. G. (1998). Oral history interview with Michael and Annette Cullen.
Lua i Stíl Chicago (17ú heag.)Cullen, Michael Denis, Annette Cullen, agus Rosalie G. Riegle. Oral History Interview with Michael and Annette Cullen. 1998.
Lua MLA (8ú heag.)Cullen, Michael Denis, et al. Oral History Interview with Michael and Annette Cullen. 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.