Vieira, W. . .. (2008). New professional salesman: Meeting challenges in the 21st century (1.). Response Books.
Styl cytowania ChicagoVieira, Walter. New Professional Salesman: Meeting Challenges in the 21st Century. 1. New Delhi: Response Books, 2008.
Styl cytowania MLAVieira, Walter. New Professional Salesman: Meeting Challenges in the 21st Century. 1. Response Books, 2008.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..