Não informado. (1990). Personnel Training and Education. Library Association, Personnel Training and Education Group.
Cytowanie według stylu Chicago (wyd. 17)Não informado. Personnel Training and Education. London: Library Association, Personnel Training and Education Group, 1990.
Cytowanie według stylu MLA (wyd. 8)Não informado. Personnel Training and Education. Library Association, Personnel Training and Education Group, 1990.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..