APA (7th ed.) Citation

Ott, H., & Koolwijk, T. F. v. (1973). Th. F. Van Koolwijk Exlibris.

Chicago Style (17th ed.) Citation

Ott, Herbert, and Thomas Felix van Koolwijk. Th. F. Van Koolwijk Exlibris. 1973.

MLA (9th ed.) Citation

Ott, Herbert, and Thomas Felix van Koolwijk. Th. F. Van Koolwijk Exlibris. 1973.

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