APA (7th ed.) Citation

Arnold, P., Charlier, J., & Thomas, I. Transport geography at the turn of the century. Société Royale Belge de Géographie and the Belgian National Committee of Geography.

Chicago Style (17th ed.) Citation

Arnold, Pierre, Jacques Charlier, and Isabelle Thomas. Transport Geography at the Turn of the Century. Société Royale Belge de Géographie and the Belgian National Committee of Geography.

MLA (9th ed.) Citation

Arnold, Pierre, et al. Transport Geography at the Turn of the Century. Société Royale Belge de Géographie and the Belgian National Committee of Geography.