Παραπομπή APA

Middleton, J. (2007). Gurus on e-business. Viva Books.

Παραπομπή Chicago Style

Middleton, John. Gurus on E-business. New Delhi: Viva Books, 2007.

Παραπομπή MLA

Middleton, John. Gurus on E-business. Viva Books, 2007.