APA (7th ed.) Citation

Melius, L. The American Postal Service History of the Postal Service from the Earliest Times.

Chicago Style (17th ed.) Citation

Melius, Louis. The American Postal Service History of the Postal Service from the Earliest Times.

MLA (9th ed.) Citation

Melius, Louis. The American Postal Service History of the Postal Service from the Earliest Times.

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