APA Edition Citation

Lapworth, P., & Sills, C. (2011). An introduction to transactional analysis: Helping people change (Rev. ed.). Sage Publications.

Chicago Edition Citation

Lapworth, Phil, and Charlotte Sills. An Introduction to Transactional Analysis: Helping People Change. Rev. ed. Los Angeles: Sage Publications, 2011.

MLA Edition Citation

Lapworth, Phil, and Charlotte Sills. An Introduction to Transactional Analysis: Helping People Change. Rev. ed. Sage Publications, 2011.