Gaya APA

Vernom, R., Wells, L, T. (1981). Manager in the international economy (4th ed.). Englewood Cliffs: Prentice-Hall.

Gaya MLA

Vernom, Raymod., Wells, Louis, T.. "Manager in the international economy". 4th ed. Englewood Cliffs: Prentice-Hall, 1981. Text.