APA (7th ed.) Citation

Usher, R., & Bryant, I. (1989). Adult education as theory, practice and research : the captive triangle / Robin Usher & Ian Bryant: The captive triangle. Routledge.

Chicago Style (17th ed.) Citation

Usher, Robin, and Ian Bryant. Adult Education as Theory, Practice and Research : The Captive Triangle / Robin Usher & Ian Bryant: The Captive Triangle. London: Routledge, 1989.

MLA (9th ed.) Citation

Usher, Robin, and Ian Bryant. Adult Education as Theory, Practice and Research : The Captive Triangle / Robin Usher & Ian Bryant: The Captive Triangle. Routledge, 1989.

Warning: These citations may not always be 100% accurate.