APA (7th ed.) Citation

Heir, M. (1930). Twentieth century encyclopedia of printing. Graphic Arts Pub. Co..

Chicago Style (17th ed.) Citation

Heir, Martin. Twentieth Century Encyclopedia of Printing. Chicago: Graphic Arts Pub. Co., 1930.

MLA (8th ed.) Citation

Heir, Martin. Twentieth Century Encyclopedia of Printing. Graphic Arts Pub. Co., 1930.

Warning: These citations may not always be 100% accurate.