APA Style

Christie, Agatha. (1949). Crooked house . New York: Pocket Books.

Chicago Style

Christie, Agatha. Crooked house. New York: Pocket Books, 1949. Book.

MLA Style

Christie, Agatha. Crooked house. New York: Pocket Books, 1949. Book.

Turabian Style

Christie, Agatha. Crooked house. New York: Pocket Books, 1949. Book.