APA (7th ed.) Citation

(1930). Dental hypodermic needles. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Dental Hypodermic Needles. [Washington?]: U.S. Government Printing Office, 1930.

MLA (9th ed.) Citation

Dental Hypodermic Needles. U.S. Government Printing Office, 1930.

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