(1977). Shipping Statistics Yearbook: Shipping Markets, Shipbuilding, Ports and Sea Canals / Institute of Shipping Economics and Logistics.
Chicago-Zitierstil (17. Ausg.)Shipping Statistics Yearbook: Shipping Markets, Shipbuilding, Ports and Sea Canals / Institute of Shipping Economics and Logistics. Bremen, 1977.
MLA-Zitierstil (8. Ausg.)Shipping Statistics Yearbook: Shipping Markets, Shipbuilding, Ports and Sea Canals / Institute of Shipping Economics and Logistics. 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.