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Summer Triangle (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Summer Triangle" in English language version.

refsWebsite
Global rank English rank
2books.google.com
3rd place
3rd place

books.google.com

  • Patrick Moore (20 October 1983). Patrick Moore's History of astronomy. Macdonald. ISBN 978-0-356-08607-1.
  • Lt. Col. William E. Hubert, USAF (Ret.) (December 1, 2006). "Chapter Eleven: "Triple Rated" Copilot, (Ugh)!". Pilot Here Or Pile It There: A Memoir. AuthorHouse. p. 115. ISBN 978-142595689-9.