Cita APA (7a ed.)

Harrell, A., Hser, Y., & Powers, K. (1992). Anticipating Community Drug Problems. Urban Institute.

Cita Chicago Style (17a ed.)

Harrell, Adele, Yih-Ing Hser, y Keiko Powers. Anticipating Community Drug Problems. Urban Institute, 1992.

Cita MLA (9a ed.)

Harrell, Adele, et al. Anticipating Community Drug Problems. Urban Institute, 1992.