WHITMAN, D. (1991). The Legal Environment Of Business Douglas Whitman. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)WHITMAN, Douglas. The Legal Environment Of Business Douglas Whitman. McGraw-Hill, 1991.
Lua MLA (8ú heag.)WHITMAN, Douglas. The Legal Environment Of Business Douglas Whitman. McGraw-Hill, 1991.
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