Bergengren, R. F. (1945). I speak for Joe Doakes: For co-operation at home and among nations. Harper & brothers.
Chicago-viite (17. p.)Bergengren, Roy F. I Speak for Joe Doakes: For Co-operation at Home and Among Nations. New York, London: Harper & brothers, 1945.
MLA-viite (8. p.)Bergengren, Roy F. I Speak for Joe Doakes: For Co-operation at Home and Among Nations. Harper & brothers, 1945.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.