Não informado. (1962). Theory into practice. Ohio State University, Bureau of Educational Research and Service.
Citação do estilo Chicago (17ª ed.)Não informado. Theory into Practice. Columbus, Ohio: Ohio State University, Bureau of Educational Research and Service, 1962.
Citação MLA (8ª ed.)Não informado. Theory into Practice. Ohio State University, Bureau of Educational Research and Service, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.
