APA (7th ed.) Citation

Crichton. (1969). A case of need. A Signet Book.

Chicago Style (17th ed.) Citation

Crichton. A Case of Need. New York: A Signet Book, 1969.

MLA (9th ed.) Citation

Crichton. A Case of Need. A Signet Book, 1969.

Warning: These citations may not always be 100% accurate.