APA Style

Langrish, Katherine. (2009). Troll Blood (1st edition). London: Harper Collins Children's Books.

Chicago Style

Langrish, Katherine. Troll Blood. 1st edition London: Harper Collins Children's Books, 2009. Text.

MLA Style

Langrish, Katherine. Troll Blood. 1st edition London: Harper Collins Children's Books, 2009. Text.

Turabian Style

Langrish, Katherine. Troll Blood. 1st edition London: Harper Collins Children's Books, 2009. Print.