Cita APA (7a ed.)

Cayet, J., Keyser, P. d., & Sion, G. (1949). Gand. Charles Dessart.

Cita Chicago Style (17a ed.)

Cayet, J., Paul de Keyser, y Georges Sion. Gand. Bruxelles: Charles Dessart, 1949.

Cita MLA (9a ed.)

Cayet, J., et al. Gand. Charles Dessart, 1949.