Cita APA (7a ed.)

Umphrey, M. M. (2008). Trials. Ashgate.

Cita Chicago Style (17a ed.)

Umphrey, Martha Merrill. Trials. Aldershot: Ashgate, 2008.

Cita MLA (9a ed.)

Umphrey, Martha Merrill. Trials. Ashgate, 2008.