H.P. Drewry (Shipping Consultants) Limited. Research Division. (1976). The scope for barge-carrying systems. H.P. Drewry (Shipping Consultants) Limited.
Citace podle Chicago (17th ed.)H.P. Drewry (Shipping Consultants) Limited. Research Division. The Scope for Barge-carrying Systems. London (1 Argyll St., W1V 1AD): H.P. Drewry (Shipping Consultants) Limited, 1976.
Citace podle MLA (8th ed.)H.P. Drewry (Shipping Consultants) Limited. Research Division. The Scope for Barge-carrying Systems. H.P. Drewry (Shipping Consultants) Limited, 1976.
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