George, C. S. (1959). Management in industry. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)George, Claude S. Management in Industry. Englewood Cliffs, N. J: Prentice-Hall, 1959.
Lua MLA (9ú heag.)George, Claude S. Management in Industry. Prentice-Hall, 1959.
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