@BOOK{ Book!D - 104449305,
AUTHOR = "Van Allen, James Alfred, 1914-",
TITLE = "924 elementary problems and answers in solar system astronomy",
LIBRARY= "کتابخانه مرکزی دانشگاه صنعتی اصفهان",
SUBJECT = "Solar system- Miscellanea",
URL = "/book/104449305/924-elementary-problems-and-answers-in-solar-syste/"}