Pol nord magnètic (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pol nord magnètic" in Catalan language version.

refsWebsite

Global rank Catalan rank

1,849^th place

2^nd place

1windows2universe.org

low place

5,045^th place

google.cat

books.google.cat

Serway, Raymond A.; Chris Vuille Essentials of college physics. USA: Cengage Learning, 2006, p. 493. ISBN 0-495-10619-4 [Consulta: 19 abril 2012].

windows2universe.org

Russell, Randy. «Earth's Magnetic Poles». Windows to the Universe. National Earth Science Teachers Association. [Consulta: 19 abril 2012].