Gaya APA

Cheeseman, H, R. (2001). Business law : ethical, international, and e-commerce environment (4th ed.). Upper Saddle River, NJ: Prentice Hall.

Gaya MLA

Cheeseman, Henry, R.. "Business law : ethical, international, and e-commerce environment". 4th ed. Upper Saddle River, NJ: Prentice Hall, 2001. Text.