APA

Hutchins P., . (1989). The Doorbell Rang. New York: Mulberry Books.

Chicago

Hutchins Pat, . 1989. The Doorbell Rang. New York: Mulberry Books.

Harvard

Hutchins P., . (1989). The Doorbell Rang. New York: Mulberry Books.

MLA

Hutchins Pat, . The Doorbell Rang. New York: Mulberry Books. 1989.