Stiller, E. (1971). System of Manpower Planning on the Enterprise Level. The Institute of National Planning.
Lua i Stíl Chicago (17ú heag.)Stiller, E. System of Manpower Planning on the Enterprise Level. Cairo: The Institute of National Planning, 1971.
Lua MLA (9ú heag.)Stiller, E. System of Manpower Planning on the Enterprise Level. The Institute of National Planning, 1971.
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