Roberts, H. (1949). Prevention of road accidents: Digest of the reports prepared for the conference in Geneva September 1949.
Chicago-Zitierstil (17. Ausg.)Roberts, Howard. Prevention of Road Accidents: Digest of the Reports Prepared for the Conference in Geneva September 1949. The Hague, 1949.
MLA-Zitierstil (9. Ausg.)Roberts, Howard. Prevention of Road Accidents: Digest of the Reports Prepared for the Conference in Geneva September 1949. 1949.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.