APA (7th ed.) Citation

(1930). Sound absorption coefficients of more common materials. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Sound Absorption Coefficients of More Common Materials. [Washington?]: U.S. Government Printing Office, 1930.

MLA (9th ed.) Citation

Sound Absorption Coefficients of More Common Materials. U.S. Government Printing Office, 1930.

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