Seagrave Memorial Observatory (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Seagrave Memorial Observatory" in English language version.

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astronomy.com

Huestis, David A. (July 22, 2014). "Seagrave Memorial Observatory centennial (1914-2014)". Astronomy Magazine. Kalmbach Publishing Co. Retrieved 7 January 2016.

Smiley, Charles H. (1934). "Frank Evans Seagrave". Popular Astronomy. 42: 504–505. Bibcode:1934PA.....42..504S. Retrieved 7 January 2016.

Smiley, Charles H. (1934). "Frank Evans Seagrave". Popular Astronomy. 42: 504–505. Bibcode:1934PA.....42..504S. Retrieved 7 January 2016.

Cormack, Maribelle; Laird, Harriet L; Null, Wilhelmina A; Reed, Constance H; Patton, Ralph C; Stevens, W Edwin (2005) [1957]. "How the Skyscrapers Acquired an Observatory and Other Property" (PDF). In Hendrickson, Jim (ed.). A Quarter Century Of Skyscraping: 1932 - 1957 (75th Anniversary ed.). North Scituate, Rhode Island: Skyscrapers, Inc. (Amateur Astronomical Society of Rhode Island). Retrieved 7 January 2016.
Huestis, David A. (2007). "75 Years of Skyscrapers" (PDF). In Huestis, Tina; Hendrickson, Jim (eds.). 75 Years of Skyscrapers: 1932 - 2007. North Scituate, Rhode Island: Skyscrapers, Inc. (Amateur Astronomical Society of Rhode Island). Retrieved 7 January 2016.