APA

Speare E. G., . (2005). The sign of the beaver. New York: Yearling Book.

Chicago

Speare Elizabeth George, . 2005. The sign of the beaver. New York: Yearling Book.

Harvard

Speare E. G., . (2005). The sign of the beaver. New York: Yearling Book.

MLA

Speare Elizabeth George, . The sign of the beaver. New York: Yearling Book. 2005.