APA (7th ed.) Citation

Super, D. E. (1955). Opportunities in psychology. Vocational Guidance Manuals.

Chicago Style (17th ed.) Citation

Super, Donald Edwin. Opportunities in Psychology. New York: Vocational Guidance Manuals, 1955.

MLA (9th ed.) Citation

Super, Donald Edwin. Opportunities in Psychology. Vocational Guidance Manuals, 1955.

Warning: These citations may not always be 100% accurate.