Sorenson, H. (1948). Psychology in education (2nd ed.). McGraw-Hill.
Cita Chicago (17th ed.)Sorenson, Herbert. Psychology in Education. 2nd ed. New York: McGraw-Hill, 1948.
Cita MLA (9th ed.)Sorenson, Herbert. Psychology in Education. 2nd ed. McGraw-Hill, 1948.
Atenció: Aquestes cites poden no estar 100% correctes.