Villere, M. (1981). Transactional analysis at work. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Villere, Maurice. Transactional Analysis at Work. New Jersey: Prentice Hall, 1981.
Lua MLA (9ú heag.)Villere, Maurice. Transactional Analysis at Work. Prentice Hall, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.