00416nam a22001457i 4500001001000000005001700010008004100027082002000068100001900088245003200107260006400139300001700203650003200220020001800252SXC03492920260819093943.0260101s2020    ii            000 0 eng d  a520 PAL.M-A222  aPalen, Stacy E10aAstronomy /cPalen, Stacy E  abMcGraw Hill Education (India) Pvt. Ltd., New Delhi,c2020  ap. ;c22 cm. 0aAstronomy & allied sciences  a9780393533958