APA (7th ed.) Citation

Joint Committee on Printing of the Commercial Printing Industry. (1920). Circular. [publisher not identified].

Chicago Style (17th ed.) Citation

Joint Committee on Printing of the Commercial Printing Industry. Circular. Washington: [publisher not identified], 1920.

MLA (9th ed.) Citation

Joint Committee on Printing of the Commercial Printing Industry. Circular. [publisher not identified], 1920.

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