Reference

	Handbook for visual meteor observations by M Gyssens, Paul Roggemans Year: 1989 Hits: 3100 Date insert: Monday, 31 December 2018
	Herschel 400 Observing Guide by Thierry Legault, Steven James O’Meara Year: 2013 Hits: 3485 Date insert: Monday, 31 December 2018
	Hubble Imaging Space and Time by David Devorkin, Robert Smith Year: 2008 Hits: 965 Date insert: Sunday, 05 February 2023
	Light and Its Uses: Making and Using Lasers,Interferometers and Instruments of Dispersion (Readings from Scientific American) by C. L. Stong Year: 1987 Hits: 2994 Date insert: Monday, 31 December 2018
	Making and Enjoying Telescopes: 6 Complete Projects and a Stargazers Guide by Robert Miller, Kenneth Wilson Year: 1995 Hits: 5964 Date insert: Monday, 31 December 2018