Marshall, P. S. (2013). 80/20 sales and marketing: The definitive guide to working less and making more. Entrepreneur Press.
Chicago Style (17th ed.) CitationMarshall, Perry S. 80/20 Sales and Marketing: The Definitive Guide to Working Less and Making More. New York: Entrepreneur Press, 2013.
MLA (9th ed.) CitationMarshall, Perry S. 80/20 Sales and Marketing: The Definitive Guide to Working Less and Making More. Entrepreneur Press, 2013.
Warning: These citations may not always be 100% accurate.