Ewing, A. (1812). Practical astronomy: Containing a description of the solar system, the doctrine of the sphere, the principal problems in astronomy ... together with astronomical tables of the sun, moon, and primary planets. David Allinson & Co.
Chicago-Zitierstil (17. Ausg.)Ewing, Alexander. Practical Astronomy: Containing a Description of the Solar System, the Doctrine of the Sphere, the Principal Problems in Astronomy ... Together with Astronomical Tables of the Sun, Moon, and Primary Planets. Burlington, N.J: David Allinson & Co, 1812.
MLA-Zitierstil (9. Ausg.)Ewing, Alexander. Practical Astronomy: Containing a Description of the Solar System, the Doctrine of the Sphere, the Principal Problems in Astronomy ... Together with Astronomical Tables of the Sun, Moon, and Primary Planets. David Allinson & Co, 1812.