Citace podle APA

Vieira, W. (2008). The new professional salesman: Meeting challenges in the 21st century. Response Books.

Styl Chicago

Vieira, Walter. The New Professional Salesman: Meeting Challenges in the 21st Century. New Delhi: Response Books, 2008.

Citace podle MLA

Vieira, Walter. The New Professional Salesman: Meeting Challenges in the 21st Century. Response Books, 2008.

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