Não informado. (1968). Focus on guidance. American Personnel and Guidance Association.
Style de citation Chicago (17e éd.)Não informado. Focus on Guidance. Denver, Colo: American Personnel and Guidance Association, 1968.
Style de citation MLA (8e éd.)Não informado. Focus on Guidance. American Personnel and Guidance Association, 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.