Ellis, A. K., Cogan, J. J., & Howey, K. R. (1991). Introduction to the foundations of education (3rd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Ellis, Arthur K., John J. Cogan, i Kenneth R. Howey. Introduction to the Foundations of Education. 3rd ed. Englewood Cliffs,N. J: Prentice-Hall, 1991.
Cita MLA (9th ed.)Ellis, Arthur K., et al. Introduction to the Foundations of Education. 3rd ed. Prentice-Hall, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.