Oosterwall, G. (1972). Mission possible: The challenge of mission today. Southern Publishing Ass.
Lua i Stíl Chicago (17ú heag.)Oosterwall, Gottfried. Mission Possible: The Challenge of Mission Today. Southern Publishing Ass, 1972.
Lua MLA (9ú heag.)Oosterwall, Gottfried. Mission Possible: The Challenge of Mission Today. Southern Publishing Ass, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.