APA (7th ed.) Citation

(1940). Zeven x Zeuven. Polygoon-Profilti.

Chicago Style (17th ed.) Citation

Zeven X Zeuven. Netherlands: Polygoon-Profilti, 1940.

MLA (9th ed.) Citation

Zeven X Zeuven. Polygoon-Profilti, 1940.

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