Sorenson, H. (1964). Psychology in education (4th ed.). Mcgraw- Hill.
Cita Chicago (17th ed.)Sorenson, Herbert. Psychology in Education. 4th ed. London: Mcgraw- Hill, 1964.
Cita MLA (9th ed.)Sorenson, Herbert. Psychology in Education. 4th ed. Mcgraw- Hill, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.