Cita APA (7th ed.)
Klein, S. B. (2012). Learning principles and applications (6th ed.). Sage.
Cita Chicago (17th ed.)
Klein, Stephen B. Learning Principles and Applications. 6th ed. Los Angeles: Sage, 2012.
Cita MLA (9th ed.)
Klein, Stephen B. Learning Principles and Applications. 6th ed. Sage, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.