https://pictures.abebooks.com/isbn/9780080091419-us.jpg Introduction to the Mechanics of the Solar System@By: Rudolf Kurth@Publisher: @Pergamon@Print ISBN: 9780080091419, 0080091415@eText ISBN: 9781483147284, 1483147282@Copyright year: 1959@Format: PDF@Available from $ 31.95 USD@SKU: 9781483147284 Ebooks here: https://ouo.io/4KRTrR
