Orr, W., & Castelao, P. (2012). Wanted! A guinea pig called Henry. Henry Holt and Co..

Orr, Wendy, and Patricia Castelao. Wanted! A Guinea Pig Called Henry. New York: Henry Holt and Co., 2012.

Orr, Wendy, and Patricia Castelao. Wanted! A Guinea Pig Called Henry. Henry Holt and Co., 2012.