APA

(1953). Departamento de Servicios al Consumidor. San Juan, P.R: Department of Industrial Services Economic.

Chicago

1953. Departamento de Servicios al Consumidor. San Juan, P.R: Department of Industrial Services Economic.

Harvard

(1953). Departamento de Servicios al Consumidor. San Juan, P.R: Department of Industrial Services Economic.

MLA

Departamento de Servicios al Consumidor. San Juan, P.R: Department of Industrial Services Economic. 1953.