Não informado. (1990). Personnel Training and Education. Library Association, Personnel Training and Education Group.
Citação do estilo Chicago (17ª ed.)Não informado. Personnel Training and Education. London: Library Association, Personnel Training and Education Group, 1990.
Citação MLA (8ª ed.)Não informado. Personnel Training and Education. Library Association, Personnel Training and Education Group, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.