Cowham, M. (2014). A study of the quadrant: Horary Quadrants, Sundial Making Quadrants, Surveying Quadrants, Astronomical Quantrants. M.J. Cowham.
Chicago-Zitierstil (17. Ausg.)Cowham, Mike. A Study of the Quadrant: Horary Quadrants, Sundial Making Quadrants, Surveying Quadrants, Astronomical Quantrants. Cambridge: M.J. Cowham, 2014.
MLA-Zitierstil (9. Ausg.)Cowham, Mike. A Study of the Quadrant: Horary Quadrants, Sundial Making Quadrants, Surveying Quadrants, Astronomical Quantrants. M.J. Cowham, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.