APA (7th ed.) Citation

Martin, H. C. (1930). 1000 practical show card layouts and color sketches. The Signs of the Times Publishing Co..

Chicago Style (17th ed.) Citation

Martin, Harold C. 1000 Practical Show Card Layouts and Color Sketches. Cincinnati, Ohio: The Signs of the Times Publishing Co., 1930.

MLA (8th ed.) Citation

Martin, Harold C. 1000 Practical Show Card Layouts and Color Sketches. The Signs of the Times Publishing Co., 1930.