پیاسکی اچ‌آرپی رسکیوئر (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "پیاسکی اچ‌آرپی رسکیوئر" in Persian language version.

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1centennialofflight.gov

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centennialofflight.gov

Day, Dwayne A. (2003). "Piasecki: The Dogship and the Flying Banana". U.S. Centennial of Flight. Archived from the original on 19 December 2011. Retrieved 17 June 2012.http://www.centennialofflight.gov/essay/Rotary/Piasecki/HE4.htm

usna.com

Close, Robert A. "Helo Operations, Class of 1945". Helo Operations. U.S. Naval Academy Alumni Association & Foundation. Retrieved 17 June 2012.https://www.usna.com/SSLPage.aspx?pid=656