Não informado. (1920). Journal of the Institute of Personnel Management. Institute of Personnel Management.
Chicago-referens (17:e uppl.)Não informado. Journal of the Institute of Personnel Management. London: Institute of Personnel Management, 1920.
MLA-referens (8:e uppl.)Não informado. Journal of the Institute of Personnel Management. Institute of Personnel Management, 1920.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.