KENNEDYhDan S. (1991). The ultimate sales letter: Boost your sales with powerful sales letters, based on Madison Avenue techniques. Golden Books Centre.
Chicago Style (17th ed.) CitationKENNEDYhDan S. The Ultimate Sales Letter: Boost Your Sales with Powerful Sales Letters, Based on Madison Avenue Techniques. Kuala Lumpur: Golden Books Centre, 1991.
MLA (9th ed.) CitationKENNEDYhDan S. The Ultimate Sales Letter: Boost Your Sales with Powerful Sales Letters, Based on Madison Avenue Techniques. Golden Books Centre, 1991.
Warning: These citations may not always be 100% accurate.