APA (7th ed.) Citation

Royer & Duplat, G. (1991). Histoire de Martens VIII. Brussel: Le Soir.

Chicago Style (17th ed.) Citation

Royer and Guy Duplat. Histoire De Martens VIII. Brussel: Le Soir, 1991.

MLA (8th ed.) Citation

Royer and Guy Duplat. Histoire De Martens VIII. Brussel: Le Soir, 1991.

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