APA (7th ed.) Citation

Ermen, E. v. (1990). The United States in old maps and prints. Lannoo.

Chicago Style (17th ed.) Citation

Ermen, Eduard van. The United States in Old Maps and Prints. Tielt: Lannoo, 1990.

MLA (9th ed.) Citation

Ermen, Eduard van. The United States in Old Maps and Prints. Lannoo, 1990.