Petty, S., & Verbeck, E. (2012). Worth every penny: Build a business that thrills your customers and still charge what you're worth. Greenleaf Book Group Press.
Style de citation Chicago (17e éd.)Petty, Sarah, et Erin Verbeck. Worth Every Penny: Build a Business That Thrills Your Customers and Still Charge What You're Worth. Austin, Tex.: Greenleaf Book Group Press, 2012.
Style de citation MLA (8e éd.)Petty, Sarah, et Erin Verbeck. Worth Every Penny: Build a Business That Thrills Your Customers and Still Charge What You're Worth. Greenleaf Book Group Press, 2012.
Attention : ces citations peuvent ne pas être correctes à 100%.