霍伊尔. (2008). 离太阳只有七步: Seven steps to the sun. 重庆出版社.
Chicago Style (17th ed.) Citation霍伊尔. 离太阳只有七步: Seven Steps to the Sun. 重庆出版社, 2008.
Cita MLA霍伊尔. 离太阳只有七步: Seven Steps to the Sun. 重庆出版社, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.