APA Style

Grimshaw, Kath. (2010). The Book of Why? 50 quetions and all the answers . London: Kingfisher.

Chicago Style

Grimshaw, Kath. The Book of Why? 50 quetions and all the answers. London: Kingfisher, 2010. Text.

MLA Style

Grimshaw, Kath. The Book of Why? 50 quetions and all the answers. London: Kingfisher, 2010. Text.

Turabian Style

Grimshaw, Kath. The Book of Why? 50 quetions and all the answers. London: Kingfisher, 2010. Print.