Darkenwald, G. G., & Merriam, S. B. (1982). Adult education: Foundations of practice. Harper & Row.
Lua i Stíl Chicago (17ú heag.)Darkenwald, Gordon G., agus Sharan B. Merriam. Adult Education: Foundations of Practice. New York: Harper & Row, 1982.
Lua MLA (9ú heag.)Darkenwald, Gordon G., agus Sharan B. Merriam. Adult Education: Foundations of Practice. Harper & Row, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.