Gaya APA

WILLES, J, H. (2005). INTERNASIONAL BUSINESS LAW : environments and transactions (Cet. 4). Newyork: McGraw-Hill.

Gaya MLA

WILLES, John, H.. "INTERNASIONAL BUSINESS LAW : environments and transactions". Cet. 4 Newyork: McGraw-Hill, 2005. Text.