北緯39度線 (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "北緯39度線" in Japanese language version.

refsWebsite
Global rank Japanese rank
237th place
508th place
934th place
57th place

google.co.jp

books.google.co.jp

  • Hubbard, Bill (2009). American Boundaries: The Nation, the States, the Rectangular Survey. University of Chicago Press. pp. 156-157. ISBN 978-0-226-35591-7. https://books.google.co.jp/books?id=LMacwod5KLwC&pg=PA156&redir_esc=y&hl=ja 27 September 2012閲覧。 

aa.usno.navy.mil