灵犀工作室. (2009). 青少年最感兴趣的世界之奇: World chief wonders for youngsters. 青岛出版社.
Chicago (17e ed.) Bronvermelding灵犀工作室. 青少年最感兴趣的世界之奇: World Chief Wonders for Youngsters. 青岛出版社, 2009.
MLA (8e ed.) Bronvermelding灵犀工作室. 青少年最感兴趣的世界之奇: World Chief Wonders for Youngsters. 青岛出版社, 2009.
Let op: Deze citaties zijn niet altijd 100% accuraat.