APA (7th ed.) Citation

Vanzype, G. (1949). Hippolyte Boulenger. De Sikkel.

Chicago Style (17th ed.) Citation

Vanzype, Gustave. Hippolyte Boulenger. Anvers: De Sikkel, 1949.

MLA (9th ed.) Citation

Vanzype, Gustave. Hippolyte Boulenger. De Sikkel, 1949.

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