Cita APA

Gutiérrez, C., Contreras, H., Trujillo, D., Haro,, E., & Ramos-Castillo, J. (2009). Illegal drugs in Lima and Callao high schools: Family factors associated with the consumption.

Citación estilo Chicago

Gutiérrez, César, Hans Contreras, Delia Trujillo, Eduardo Haro,, y José Ramos-Castillo. Illegal Drugs in Lima and Callao High Schools: Family Factors Associated With the Consumption. 2009.

Cita MLA

Gutiérrez, César, et al. Illegal Drugs in Lima and Callao High Schools: Family Factors Associated With the Consumption. 2009.