Cita APA (7a ed.)

Johnson, P. R., & Indvik, J. (1994). Workplace violence: An issue of the nineties. [s.n.].

Cita Chicago Style (17a ed.)

Johnson, Pamela R., y Julie Indvik. Workplace Violence: An Issue of the Nineties. [S.l.]: [s.n.], 1994.

Cita MLA (9a ed.)

Johnson, Pamela R., y Julie Indvik. Workplace Violence: An Issue of the Nineties. [s.n.], 1994.