APA (7th ed.) Citation

(1920). Changes in In-patient Card Form 1971-F. [publisher not identified].

Chicago Style (17th ed.) Citation

Changes in In-patient Card Form 1971-F. Washington, D.C.: [publisher not identified], 1920.

MLA (9th ed.) Citation

Changes in In-patient Card Form 1971-F. [publisher not identified], 1920.