APA (7th ed.) Citation

Watters, K. (2008). Principles for transformation. Adults Learning, 20(2), 29.

Chicago Style (17th ed.) Citation

Watters, Kate. "Principles for Transformation." Adults Learning 20, no. 2 (2008): 29.

MLA (9th ed.) Citation

Watters, Kate. "Principles for Transformation." Adults Learning, vol. 20, no. 2, 2008, p. 29.