APA

Colclough Beauchamp, Colclough Josephine, . (1999). A challenge to change. London: Thorsons.

Chicago

Colclough Beauchamp, Colclough Josephine, . 1999. A challenge to change. London: Thorsons.

Harvard

Colclough Beauchamp, Colclough Josephine, . (1999). A challenge to change. London: Thorsons.

MLA

Colclough Beauchamp, Colclough Josephine, . A challenge to change. London: Thorsons. 1999.