APA (7e ed.) Bronvermelding

Herr, E. L. (1979). Career guidance through the life span: Systematic approaches. Little, Brown and Co..

Chicago (17e ed.) Bronvermelding

Herr, Edwin L. Career Guidance Through the Life Span: Systematic Approaches. Boston: Little, Brown and Co., 1979.

MLA (9e ed.) Bronvermelding

Herr, Edwin L. Career Guidance Through the Life Span: Systematic Approaches. Little, Brown and Co., 1979.