APA

Wharton W., . (1978). Birdy. New York: Avon books.

Chicago

Wharton William, . 1978. Birdy. New York: Avon books.

Harvard

Wharton W., . (1978). Birdy. New York: Avon books.

MLA

Wharton William, . Birdy. New York: Avon books. 1978.