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 (8th ed.)

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