冈恩 & 程心运. (2010). 来自外星球的礼物: Gift from the stars. 辽宁少年儿童出版社.
Chicago Style (17th ed.) Citation冈恩 and 程心运. 来自外星球的礼物: Gift from the Stars. 辽宁少年儿童出版社, 2010.
MLA citiranje冈恩 and 程心运. 来自外星球的礼物: Gift from the Stars. 辽宁少年儿童出版社, 2010.
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