Citazione Stile APA (7a Edizione)

Herr, E. L. (1988). Career guidance through the life span: Systematic approaches (3rd ed.). Little, Brown and Co..

Citazione stile Chigago Style (17a edizione)

Herr, Edwin L. Career Guidance Through the Life Span: Systematic Approaches. 3rd ed. Boston: Little, Brown and Co., 1988.

Citatione MLA (9a ed.)

Herr, Edwin L. Career Guidance Through the Life Span: Systematic Approaches. 3rd ed. Little, Brown and Co., 1988.