Liberman, R. P. (1975). Personal effectiveness : guiding people to assert themselves and improve their social skills: Guiding people to assert themselves and improve their social skills. Research Press.
Chicago Style (17th ed.) CitationLiberman, Robert Paul. Personal Effectiveness : Guiding People to Assert Themselves and Improve Their Social Skills: Guiding People to Assert Themselves and Improve Their Social Skills. Champaign, Ill: Research Press, 1975.
MLA (9th ed.) CitationLiberman, Robert Paul. Personal Effectiveness : Guiding People to Assert Themselves and Improve Their Social Skills: Guiding People to Assert Themselves and Improve Their Social Skills. Research Press, 1975.
Warning: These citations may not always be 100% accurate.