APA Edition Citation

Sundel, S. S., & Sundel, M. (1980). Be assertive: A practical guide for human service workers. Sage Publications.

Chicago Edition Citation

Sundel, Sandra Stone, and Martin Sundel. Be Assertive: A Practical Guide for Human Service Workers. London: Sage Publications, 1980.

MLA Edition Citation

Sundel, Sandra Stone, and Martin Sundel. Be Assertive: A Practical Guide for Human Service Workers. Sage Publications, 1980.

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