References
- Thomas , B.J. 1984 . Port charging practices . Maritime Policy and Management , 5 : 117 – 132 .
- Financial Times (1984), 3 October.
- Musgrave , R.A. The theory of Public Finance , McGraw-Hill .
- Quinet , E. , Touzery , L. and Triebel , H. 1982 . Economy of Transport , Paris : Editions Economica .