(1969). Proceedings of the XVIth International Congress of Applied Psychology. Swets & Zeitlinger.
Citazione stile Chigago Style (17a edizione)Proceedings of the XVIth International Congress of Applied Psychology. Amsterdam: Swets & Zeitlinger, 1969.
Citatione MLA (9a ed.)Proceedings of the XVIth International Congress of Applied Psychology. Swets & Zeitlinger, 1969.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.