Cita APA (7a ed.)

Ansell, J., & Wharton, F. (1992). Risk: Analysis, assessment, management. Wiley.

Cita Chicago Style (17a ed.)

Ansell, Jake, y Frank Wharton. Risk: Analysis, Assessment, Management. Chichester ; New York: Wiley, 1992.

Cita MLA (9a ed.)

Ansell, Jake, y Frank Wharton. Risk: Analysis, Assessment, Management. Wiley, 1992.