Ritter, P. (1979). Educreation and feedback: Education for creation, growth, and change : the concept, general implications, and specific applications to schools of architecture, environmental design, or ekistics (2nd ed.). Pergamon Press.
Citace podle Chicago (17th ed.)Ritter, Paul. Educreation and Feedback: Education for Creation, Growth, and Change : The Concept, General Implications, and Specific Applications to Schools of Architecture, Environmental Design, or Ekistics. 2nd ed. Oxford: Pergamon Press, 1979.
Citace podle MLA (9th ed.)Ritter, Paul. Educreation and Feedback: Education for Creation, Growth, and Change : The Concept, General Implications, and Specific Applications to Schools of Architecture, Environmental Design, or Ekistics. 2nd ed. Pergamon Press, 1979.