Geyl, P. (1960). Debates with historians. Meridian.
Cita Chicago (17th ed.)Geyl, Pieter. Debates with Historians. New York: Meridian, 1960.
Cita MLA (9th ed.)Geyl, Pieter. Debates with Historians. Meridian, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.