Cita APA (7a ed.)

Polk, K., & Ruby, C. H. (1980). Respondent loss in the longitudinal study of deviant behavior. Research Center West, National Council on Crime and Deliquency.

Cita Chicago Style (17a ed.)

Polk, Kenneth, y Cheryl H. Ruby. Respondent Loss in the Longitudinal Study of Deviant Behavior. San Francisco, Cal: Research Center West, National Council on Crime and Deliquency, 1980.

Cita MLA (8a ed.)

Polk, Kenneth, y Cheryl H. Ruby. Respondent Loss in the Longitudinal Study of Deviant Behavior. Research Center West, National Council on Crime and Deliquency, 1980.