WALKER JAMES W. (1980). HUMAN RESOURCE PLANNING. MCGRAW-HILL.
Lua i Stíl Chicago (17ú heag.)WALKER JAMES W. HUMAN RESOURCE PLANNING. NEW YORK: MCGRAW-HILL, 1980.
Lua MLA (9ú heag.)WALKER JAMES W. HUMAN RESOURCE PLANNING. MCGRAW-HILL, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.