Gaya APA
DOLMAN, A, J., Jan, V, E.
(1990).
Ports as nodal points in a global transport system
.
England:
Pergamon.
Gaya MLA
DOLMAN, ANTONY, J., Jan, VAN, ETTINGER,.
"Ports as nodal points in a global transport system".
England:
Pergamon,
1990.
Book.