(美)Ethan Siegel著. (2018). 星河之外：宇宙真容探秘记. 人民邮电出版社.
Chicago Style (17th ed.) Citation(美)Ethan Siegel著. 星河之外：宇宙真容探秘记. 人民邮电出版社, 2018.
MLA (8th ed.) Citation(美)Ethan Siegel著. 星河之外：宇宙真容探秘记. 人民邮电出版社, 2018.
Warning: These citations may not always be 100% accurate.