Não informado. (1963). Education abstracts. American College Public Relations Association.
Chicago-viite (17. p.)Não informado. Education Abstracts. Washington: American College Public Relations Association, 1963.
MLA-viite (8. p.)Não informado. Education Abstracts. American College Public Relations Association, 1963.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.