CHURDEN, H. J. (1984). Personnel Management Herbertj. Churden Dan Arthur W.sherman Jr. South-Westhern Publishing Co.
Lua i Stíl Chicago (17ú heag.)CHURDEN, Herbert J. Personnel Management Herbertj. Churden Dan Arthur W.sherman Jr. South-Westhern Publishing Co, 1984.
Lua MLA (8ú heag.)CHURDEN, Herbert J. Personnel Management Herbertj. Churden Dan Arthur W.sherman Jr. South-Westhern Publishing Co, 1984.
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