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Astronomical Cybersketching. Observational Drawing with PDAs and Tablet PCs
  • PDF
  • English
  • Year: 2009
  • Author: Peter Grego
The Moon and How to Observe It (Astronomers' Observing Guides)
  • PDF
  • English
  • Year: 2005
  • Author: Peter Grego
Venus and Mercury, and How to Observe Them
  • PDF
  • English
  • Year: 2008
  • Author: Peter Grego (auth.)
Astronomical Cybersketching: Observational Drawing with PDAs and Tablet PCs
  • PDF
  • English
  • Year: 2009
  • Author: Peter Grego (auth.)
Mars and how to observe it
  • PDF
  • English
  • Year: 2012
  • Author: Peter Grego (auth.)
Astronomical Cybersketching: Observational Drawing with PDAs and Tablet PCs
  • PDF
  • English
  • Year: 2009
  • Author: Peter Grego (auth.)
Galileo and 400 Years of Telescopic Astronomy
  • PDF
  • English
  • Year: 2010
  • Author: Peter Grego, David Mannion (auth.)
Galileo and 400 Years of Telescopic Astronomy
  • EPUB
  • English
  • Year: 2010
  • Author: Telescopio nazionale Galileo;Mannion, David;Grego, Peter
Hurricane Jim Crow
  • EPUB
  • English
  • Author: Caroline Grego
Discovering God Together
  • EPUB
  • English
  • Year: 2015
  • Author: Dr. Grego Popcak; Lisa Popcak
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