沃莉 & 辛金. (2009). 育儿书: Simple guide to having a baby. 青岛出版社.
Chicago Style (17th ed.) Citation沃莉 i 辛金. 育儿书: Simple Guide to Having a Baby. 青岛出版社, 2009.
Cita MLA沃莉 i 辛金. 育儿书: Simple Guide to Having a Baby. 青岛出版社, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.