Cita APA (7a ed.)

Ellsworth, P. C., & Gross, S. R. (1994). Hardening of the Attitudes: Americans' Views on the Death Penalty.

Cita Chicago Style (17a ed.)

Ellsworth, Phoebe C., y Samuel R. Gross. Hardening of the Attitudes: Americans' Views on the Death Penalty. 1994.

Cita MLA (9a ed.)

Ellsworth, Phoebe C., y Samuel R. Gross. Hardening of the Attitudes: Americans' Views on the Death Penalty. 1994.