Cita APA (7th ed.)
Morlan, J. E., & Espinosa, L. J. (1989). Preparation of inexpensive teaching materials (3rd ed.). Fearon Teacher Aids.
Cita Chicago (17th ed.)
Morlan, John E., i Leonard J. Espinosa. Preparation of Inexpensive Teaching Materials. 3rd ed. California: Fearon Teacher Aids, 1989.
Cita MLA (9th ed.)
Morlan, John E., i Leonard J. Espinosa. Preparation of Inexpensive Teaching Materials. 3rd ed. Fearon Teacher Aids, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.