Bloco de polias (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Bloco de polias" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

1rcsccwarrior.ab.ca

low place

low place

1constructionknowledge.net

low place

low place

1books.google.com

3^rd place

6^th place

books.google.com

USHER, A. P., A History of Mechanical Inventions, Harvard University Press, 1929 (Dover Publications, revised edition, 2011, ISBN 978-0486255934)

constructionknowledge.net

PELGER, Ned. (em inglês) ConstructionKnowledge.net http://www.constructionknowledge.net/general_technical_knowledgegeneral_tech_basic_six_simple_machines.php ConstructionKnowledge.net Verifique valor |url= (ajuda) Em falta ou vazio |título= (ajuda)

rcsccwarrior.ab.ca

«Royal Canadian Sea Cadets - Master Lesson Plan - Level Three = PO:Seamanship» (PDF) (em inglês). 2 páginas. Consultado em 27 de Dezembro de 2009