Παραπομπή APA

Robert J. Christopher. (2007). Internatinal business (In lần thứ 1.). American: MC Graw Hill.

Παραπομπή Chicago Style

Robert J. Christopher. Internatinal Business. In lần thứ 1. American: MC Graw Hill, 2007.

Παραπομπή MLA

Robert J. Christopher. Internatinal Business. In lần thứ 1. American: MC Graw Hill, 2007.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.