APA (7th ed.) Citation

Whitehead, C. (1994). So, what is assertivenessn: An assertiveness training course. Resource Publications.

Chicago Style (17th ed.) Citation

Whitehead, Chrissie. So, What Is Assertivenessn: An Assertiveness Training Course. San Jose, Calif: Resource Publications, 1994.

MLA (9th ed.) Citation

Whitehead, Chrissie. So, What Is Assertivenessn: An Assertiveness Training Course. Resource Publications, 1994.