SHARPLIN, A. (1985). Strategic Management Arthur Sharplin. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)SHARPLIN, Arthur. Strategic Management Arthur Sharplin. McGraw-Hill, 1985.
Lua MLA (8ú heag.)SHARPLIN, Arthur. Strategic Management Arthur Sharplin. McGraw-Hill, 1985.
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