沃莉 & 辛金. (2009). 育儿书: Simple guide to having a baby. 青岛出版社.
Dyfyniad Arddull Chicago沃莉 and 辛金. 育儿书: Simple Guide to Having a Baby. 青岛出版社, 2009.
Dyfyniad MLA沃莉 and 辛金. 育儿书: Simple Guide to Having a Baby. 青岛出版社, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.