APA (7th ed.) Citation

(1921). Dietetics and food service duties of dietitians, supplemental instructions. [publisher not identified].

Chicago Style (17th ed.) Citation

Dietetics and Food Service Duties of Dietitians, Supplemental Instructions. Washington, D.C.: [publisher not identified], 1921.

MLA (9th ed.) Citation

Dietetics and Food Service Duties of Dietitians, Supplemental Instructions. [publisher not identified], 1921.