劳伦森 & 霍布斯. (2010). 头发一年要长15千米: Your hair grows 15 kilometres a year. 四川少年儿童出版社.
Chicago Style (17th ed.) Citation劳伦森 and 霍布斯. 头发一年要长15千米: Your Hair Grows 15 Kilometres a Year. 四川少年儿童出版社, 2010.
MLA citiranje劳伦森 and 霍布斯. 头发一年要长15千米: Your Hair Grows 15 Kilometres a Year. 四川少年儿童出版社, 2010.
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