Cita APA (7th ed.)

Bower, S. A., & Bower, G. H. (1991). Asserting yourself: A practical guide for positive change (Updated ed.). Addison-Wesley Pub.

Cita Chicago (17th ed.)

Bower, Sharon Anthony, i Gordon H. Bower. Asserting Yourself: A Practical Guide for Positive Change. Updated ed. Reading, Mass: Addison-Wesley Pub, 1991.

Cita MLA (9th ed.)

Bower, Sharon Anthony, i Gordon H. Bower. Asserting Yourself: A Practical Guide for Positive Change. Updated ed. Addison-Wesley Pub, 1991.