Leo Burnett (1961). “Communications of an Advertising Man: Selections from the Speeches, Articles, Memoranda, and Miscellaneous Writings of Leo Burnett”
Will Rogers, Bryan B. Sterling (1995). “Will Rogers Speaks: Over 1,000 Timeless Quotations for Public Speakers (writers, Politicians, Comedians, Browsers ...)”, M Evans & Company
Jerry Della Femina (2010). “From Those Wonderful Folks Who Gave You Pearl Harb: Front-Line Dispatches from the Advertising War”, p.147, Simon and Schuster
Leo Burnett (1961). “Communications of an Advertising Man: Selections from the Speeches, Articles, Memoranda, and Miscellaneous Writings of Leo Burnett”
Jerry Della Femina (2010). “From Those Wonderful Folks Who Gave You Pearl Harb: Front-Line Dispatches from the Advertising War”, p.270, Simon and Schuster