APA (7th ed.) Citation

Hopke, W. E. (1987). The Encyclopedia of careers and vocational guidance (7th ed.). J.G. Ferguson Pub. Co..

Chicago Style (17th ed.) Citation

Hopke, William E. The Encyclopedia of Careers and Vocational Guidance. 7th ed. Chicago, Ill.: J.G. Ferguson Pub. Co., 1987.

MLA (9th ed.) Citation

Hopke, William E. The Encyclopedia of Careers and Vocational Guidance. 7th ed. J.G. Ferguson Pub. Co., 1987.