Cita APA (7a ed.)

Bermingham, S., & Digby, B. (2003). Changing environments (1. publ., 3. [impr.].). Heinemann.

Cita Chicago Style (17a ed.)

Bermingham, Susan, y Bob Digby. Changing Environments. 1. publ., 3. [impr.]. Oxford [u.a.]: Heinemann, 2003.

Cita MLA (9a ed.)

Bermingham, Susan, y Bob Digby. Changing Environments. 1. publ., 3. [impr.]. Heinemann, 2003.