APA (7th ed.) Citation

(1923). Revised Out-patient Record Cards Form 1971-E (May 1923). [publisher not identified].

Chicago Style (17th ed.) Citation

Revised Out-patient Record Cards Form 1971-E (May 1923). Washington, D.C.: [publisher not identified], 1923.

MLA (9th ed.) Citation

Revised Out-patient Record Cards Form 1971-E (May 1923). [publisher not identified], 1923.