APA (7th ed.) Citation

Boon, G., & Dubois, F. (1933). Hommage au Dr. Decroly. Scheerders-van Kerchove.

Chicago Style (17th ed.) Citation

Boon, Gérard, and Fernand Dubois. Hommage Au Dr. Decroly. Saint-Nicolas-W.: Scheerders-van Kerchove, 1933.

MLA (9th ed.) Citation

Boon, Gérard, and Fernand Dubois. Hommage Au Dr. Decroly. Scheerders-van Kerchove, 1933.