Cita APA (7th ed.)

Leahey, T. H., & Harris, R. J. (1989). Human learning (2nd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Leahey, Thomas Hardy, i Richard J. Harris. Human Learning. 2nd ed. Englewood Cliffs, N.J: Prentice Hall, 1989.

Cita MLA (9th ed.)

Leahey, Thomas Hardy, i Richard J. Harris. Human Learning. 2nd ed. Prentice Hall, 1989.