Cita APA (7th ed.)

Kahler, A. A., & Morgan, B. (1985). Methods in adult education (4th ed.). Interstate Printers & Publishers.

Cita Chicago (17th ed.)

Kahler, Alan A., i Barton Morgan. Methods in Adult Education. 4th ed. Danville, Ill: Interstate Printers & Publishers, 1985.

Cita MLA (9th ed.)

Kahler, Alan A., i Barton Morgan. Methods in Adult Education. 4th ed. Interstate Printers & Publishers, 1985.