APA (7th ed.) Citation

Lewis, H. G. (1979). How to make your advertising twice as effective at half the cost. Nelson-Hall.

Chicago Style (17th ed.) Citation

Lewis, Herschell Gordon. How to Make Your Advertising Twice as Effective at Half the Cost. Chicago: Nelson-Hall, 1979.

MLA (9th ed.) Citation

Lewis, Herschell Gordon. How to Make Your Advertising Twice as Effective at Half the Cost. Nelson-Hall, 1979.