首页 / 官方藏书 / Astronomy Explained Upon Sir Isaac Newton's Principles / And made easy to those who have not studied mathematics / CHAP. XIII. Of the Equation of Time.

CHAP. XIII. Of the Equation of Time.

Astronomy Explained Upon Sir Isaac Newton's Principles / And made easy to those who have not studied mathematics · James Ferguson · 第 17 / 1128 章