Cita APA (7th ed.)
Cummings, C. (1980). Teaching makes a difference. Teaching inc.
Cita Chicago (17th ed.)
Cummings, Carol. Teaching Makes a Difference. Edmonds: Teaching inc, 1980.
Cita MLA (9th ed.)
Cummings, Carol. Teaching Makes a Difference. Teaching inc, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.