APA (7th ed.) Citation

(1923). Use of postal frank for transmission of library books through mails. [publisher not identified].

Chicago Style (17th ed.) Citation

Use of Postal Frank for Transmission of Library Books Through Mails. [Washington]: [publisher not identified], 1923.

MLA (9th ed.) Citation

Use of Postal Frank for Transmission of Library Books Through Mails. [publisher not identified], 1923.