Gardner, I. In for a Penny: Money Boxes related games and school items from the Museum of Childhood collection. Museum of Childhood.
Chicago-Zitierstil (17. Ausg.)Gardner, Ian. In for a Penny: Money Boxes Related Games and School Items from the Museum of Childhood Collection. Edinburgh: Museum of Childhood.
MLA-Zitierstil (8. Ausg.)Gardner, Ian. In for a Penny: Money Boxes Related Games and School Items from the Museum of Childhood Collection. Museum of Childhood.
警告：這些引文格式不一定是100％准確.