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Hackworth, M. (1997). The Orbit of the Moon. Retrieved July 22, 2026, from http://web.archive.org/web/20120917041420/http://www.physics.isu.edu/~hackmart/astlmoon.pdf
Hackworth, Martin. The Orbit of the Moon. 1997. http://web.archive.org/web/20120917041420/http://www.physics.isu.edu/~hackmart/astlmoon.pdf (accessed 22 July 2026).
Hackworth, Martin. The Orbit of the Moon. 1997. 22 July 2026 <http://web.archive.org/web/20120917041420/http://www.physics.isu.edu/~hackmart/astlmoon.pdf>.
%A Martin Hackworth %T The Orbit of the Moon %D 1997 %U http://web.archive.org/web/20120917041420/http://www.physics.isu.edu/~hackmart/astlmoon.pdf %O application/pdf
%0 Electronic Source %A Hackworth, Martin %D 1997 %T The Orbit of the Moon %V 2026 %N 22 July 2026 %9 application/pdf %U http://web.archive.org/web/20120917041420/http://www.physics.isu.edu/~hackmart/astlmoon.pdf
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