史宾格 & 金莹. (2013). 失踪的伯爵: Case of the missing marquess. 安徽少年儿童出版社.
Chicago Style (17th ed.) Citation史宾格 and 金莹. 失踪的伯爵: Case of the Missing Marquess. 安徽少年儿童出版社, 2013.
MLA (8th ed.) Citation史宾格 and 金莹. 失踪的伯爵: Case of the Missing Marquess. 安徽少年儿童出版社, 2013.
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