[직수입양서]
Concise Rules for Computing the Effects of Refraction and Parallax in Varying the Apparent Distance of the Moon from the Sun or a Star; ... by the Rev
[ Paperback ]
[직수입양서]
A New, Concise, and Correct Operation for Clearing the Apparent Distance of the Moon from a Star or the Sun of the Effects of Refraction and Parallax:
[ Paperback ]