APA (7e ed.) Bronvermelding

Não informado. Transport economics. Interstate Commerce Commission, Bureau of Transport Economics and Statistics.

Chicago (17e ed.) Bronvermelding

Não informado. Transport Economics. Washington: Interstate Commerce Commission, Bureau of Transport Economics and Statistics.

MLA (8e ed.) Bronvermelding

Não informado. Transport Economics. Interstate Commerce Commission, Bureau of Transport Economics and Statistics.

Let op: Deze citaties zijn niet altijd 100% accuraat.