Lua APA (7ú heag.)

霍金. (2019). 乔治的宇宙 2 寻宝记: George's cosmic treasure hunt. 湖南科学技术出版社.

Lua i Stíl Chicago (17ú heag.)

霍金. 乔治的宇宙 2 寻宝记: George's Cosmic Treasure Hunt. 湖南科学技术出版社, 2019.

Lua MLA (8ú heag.)

霍金. 乔治的宇宙 2 寻宝记: George's Cosmic Treasure Hunt. 湖南科学技术出版社, 2019.

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