APA (7th ed.) Zitazioa
Herr, E. L. (1979). Career guidance through the life span: Systematic approaches. Little, Brown and Co..
Chicago Style (17th ed.) Zitazioa
Herr, Edwin L. Career Guidance Through the Life Span: Systematic Approaches. Boston: Little, Brown and Co., 1979.
MLA (9th ed.) Zitazioa
Herr, Edwin L. Career Guidance Through the Life Span: Systematic Approaches. Little, Brown and Co., 1979.
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