Via marítima del Sant Llorenç: diferència entre les revisions

Contingut suprimit Contingut afegit
m Elimino camp perque l'agafi de Wikidata al ser igual.
m Robot: Reemplaçament automàtic de text (-hl=es +hl=ca, -hl=de +hl=ca, -hl=en +hl=ca, -hl=fr +hl=ca, -hl=it +hl=ca)
Línia 30:
*[http://www.greatlakes-seaway.com/en/index.html Great Lakes St Lawrence Seaway System web site]
*[http://www.seaway.dot.gov/ The St Lawrence Seaway Development Corporation]
*[http://books.google.com/books?id=ZNsDAAAAMBAJ&pg=PA97&dq=Popular+Mechanics+Science+installing+linoleum&source=bl&ots=QDvNQKlT8H&sig=Rc-MSmXVaUvGIGu_pAReHhhILGU&hl=enca&sa=X&ei=P-EMUMKfO4-uqQHpn-zKCg&sqi=2&ved=0CDsQ6AEwAg#v=onepage&q&f=true "Stairways to the Seas."] ''Popular Mechanics'', January 1959, pp. 97-103. Detail article with illustrations of lock system.
*[http://hot.mixtopix.com/st-lawrence-seaway-april-25-1959-2590/ St. Lawrence Seaway April 25, 1959]
*[http://eisenhower.archives.gov/research/online_documents/st_lawrence_seaway.html Documents and Photographs relating to the St. Lawrence Seaway, Dwight D. Eisenhower Presidential Library]