Vieira, W. (2008). New professional salesman: Meeting challenges in the 21st century.
Chicago Edition CitationVieira, Walter. New Professional Salesman: Meeting Challenges in the 21st Century. Response Books, 2008.
Cita MLAVieira, Walter. New Professional Salesman: Meeting Challenges in the 21st Century. 2008.
Atenció: Aquestes cites poden no estar 100% correctes.