APA (7th ed.) Citation

Gaudaen, G., & Wattiez, R. (1960). Ex Libris Rene Wattiez.

Chicago Style (17th ed.) Citation

Gaudaen, Gerard, and René Wattiez. Ex Libris Rene Wattiez. [S. l, 1960.

MLA (9th ed.) Citation

Gaudaen, Gerard, and René Wattiez. Ex Libris Rene Wattiez. 1960.

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