Pierce, R. M. (1980). The Skills of career counseling. University Park Press.
Cita Chicago (17th ed.)Pierce, Richard M. The Skills of Career Counseling. Baltimore, Maryland: University Park Press, 1980.
Cita MLA (9th ed.)Pierce, Richard M. The Skills of Career Counseling. University Park Press, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.