Cita APA (7th ed.)

Merriam, S. B., & Caffarella, R. S. (1991). Learning in adulthood: A comprehensive guide. Jossey - Bass.

Cita Chicago (17th ed.)

Merriam, Sharan B., i Rosemary S. Caffarella. Learning in Adulthood: A Comprehensive Guide. San francisco: Jossey - Bass, 1991.

Cita MLA (9th ed.)

Merriam, Sharan B., i Rosemary S. Caffarella. Learning in Adulthood: A Comprehensive Guide. Jossey - Bass, 1991.