【作者(必填)】David etc.

【文题(必填)】Mars: Our Future on the Red Planet
【年份(必填)】2016

【全文链接或数据库名称(选填)】https://www.amazon.com/Mars-Our-Future-Red-Planet/dp/1426217587/ref=sr_1_3?keywords=mars&qid=1552210718&rnid=1000&s=books&sr=1-3