Oosterwall, G. (1972). Mission possible: The challenge of mission today. Southern Publishing Ass.
Citazione stile Chigago Style (17a edizione)Oosterwall, Gottfried. Mission Possible: The Challenge of Mission Today. Southern Publishing Ass, 1972.
Citatione MLA (9a ed.)Oosterwall, Gottfried. Mission Possible: The Challenge of Mission Today. Southern Publishing Ass, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.