MARSH, S. (1989). Business Law S.b Marsh. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)MARSH, S.B. Business Law S.b Marsh. McGraw-Hill, 1989.
Lua MLA (8ú heag.)MARSH, S.B. Business Law S.b Marsh. McGraw-Hill, 1989.
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