Cita APA (7th ed.)

YIP, G. &. O. (2007). MANAGING GLOBAL CUSTOMERS. OXFORD UNIVERSITY.

Cita Chicago (17th ed.)

YIP, GEORGE & OTHERS. MANAGING GLOBAL CUSTOMERS. NEWYORK: OXFORD UNIVERSITY, 2007.

Cita MLA (9th ed.)

YIP, GEORGE & OTHERS. MANAGING GLOBAL CUSTOMERS. OXFORD UNIVERSITY, 2007.