Cita APA (7th ed.)
Schüddekopf, O. (1967). History Teaching and history textbook revision. Council of Europe.
Cita Chicago (17th ed.)
Schüddekopf, Otto-Ernst. History Teaching and History Textbook Revision. Strasbourg: Council of Europe, 1967.
Cita MLA (9th ed.)
Schüddekopf, Otto-Ernst. History Teaching and History Textbook Revision. Council of Europe, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.