APA (7th ed.) Citation

Hygienic Laboratory (U.S.) & ProQuest (Firm). (1921). Digest of comments on the Pharmacopoia of the United States of America and on the National Formulary for the calendar year ending December 31 1919. [publisher not identified].

Chicago Style (17th ed.) Citation

Hygienic Laboratory (U.S.) and ProQuest (Firm). Digest of Comments on the Pharmacopoia of the United States of America and on the National Formulary for the Calendar Year Ending December 31 1919. Washington: [publisher not identified], 1921.

MLA (9th ed.) Citation

Hygienic Laboratory (U.S.) and ProQuest (Firm). Digest of Comments on the Pharmacopoia of the United States of America and on the National Formulary for the Calendar Year Ending December 31 1919. [publisher not identified], 1921.

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