TY  - BOOK
AU  - Alexandersson,Gunnar
AU  - Norstrom,Goran
TI  - World shipping: an economic geography of ports and seaborne trade
PY  - 1963///
CY  - Wiley : New York
KW  - Shipping
KW  - Harbors
KW  - International economic relations
N1  - 'Statistical sources': p. 465-467
ER  -