PHILIP, H. M. (1993). BUILDING THE COMPETITIVE WORKFORCE. JOHN WILEY AND SONS.
Lua i Stíl Chicago (17ú heag.)PHILIP, H M. BUILDING THE COMPETITIVE WORKFORCE. NEW-YORK: JOHN WILEY AND SONS, 1993.
Lua MLA (9ú heag.)PHILIP, H M. BUILDING THE COMPETITIVE WORKFORCE. JOHN WILEY AND SONS, 1993.
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