Kroeger, O. (2002). Type talk at work: How 16 personality types determine your success on the job (NA.). A Dell Trade Paperback.
Lua i Stíl Chicago (17ú heag.)Kroeger, Otto. Type Talk at Work: How 16 Personality Types Determine Your Success on the Job. NA. New York: A Dell Trade Paperback, 2002.
Lua MLA (9ú heag.)Kroeger, Otto. Type Talk at Work: How 16 Personality Types Determine Your Success on the Job. NA. A Dell Trade Paperback, 2002.
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