Roszkowski, M. E. (1997). Business Law Principles, Cases, And Policy Mark E. Roszkowski. Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Roszkowski, Mark E. Business Law Principles, Cases, And Policy Mark E. Roszkowski. Addison-Wesley, 1997.
Lua MLA (8ú heag.)Roszkowski, Mark E. Business Law Principles, Cases, And Policy Mark E. Roszkowski. Addison-Wesley, 1997.
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