丁绍兰. (2009). 令孩子着迷的100个未解之谜: Top 100 amazing unsolved mysteries for children. 陕西科学技术出版社.
Chicago (17e ed.) Bronvermelding丁绍兰. 令孩子着迷的100个未解之谜: Top 100 Amazing Unsolved Mysteries for Children. 陕西科学技术出版社, 2009.
MLA (8e ed.) Bronvermelding丁绍兰. 令孩子着迷的100个未解之谜: Top 100 Amazing Unsolved Mysteries for Children. 陕西科学技术出版社, 2009.
Let op: Deze citaties zijn niet altijd 100% accuraat.