APA (7th ed.) Citation

United States. Postmaster General. (1924). Unused revenue stamps held by public not to be redeemed by postmasters. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Postmaster General. Unused Revenue Stamps Held by Public Not to Be Redeemed by Postmasters. Washington: [publisher not identified], 1924.

MLA (9th ed.) Citation

United States. Postmaster General. Unused Revenue Stamps Held by Public Not to Be Redeemed by Postmasters. [publisher not identified], 1924.

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