Cita APA (7th ed.)
PERRY, W. M. (1925). A Study in the psychology of learning in geometry.
Cita Chicago (17th ed.)
PERRY, Winona M. A Study in the Psychology of Learning in Geometry. New York, 1925.
Cita MLA (9th ed.)
PERRY, Winona M. A Study in the Psychology of Learning in Geometry. 1925.
Atenció: Aquestes cites poden no estar 100% correctes.