APA Style

Wyndham, John. (2100). The Chrysalids . London: Penguin Book.

Chicago Style

Wyndham, John. The Chrysalids. London: Penguin Book, 2100. Text.

MLA Style

Wyndham, John. The Chrysalids. London: Penguin Book, 2100. Text.

Turabian Style

Wyndham, John. The Chrysalids. London: Penguin Book, 2100. Print.