APA

Oficina de Oportunidades Económicas, . (1977). A survey of the impact of the energy crisis among the low income population of Puerto Rico. [San Juan, P. R: Office of Economic Opportunity of Puerto Rico.

Chicago

Oficina de Oportunidades Económicas, . 1977. A survey of the impact of the energy crisis among the low income population of Puerto Rico. [San Juan, P. R: Office of Economic Opportunity of Puerto Rico.

Harvard

Oficina de Oportunidades Económicas, . (1977). A survey of the impact of the energy crisis among the low income population of Puerto Rico. [San Juan, P. R: Office of Economic Opportunity of Puerto Rico.

MLA

Oficina de Oportunidades Económicas, . A survey of the impact of the energy crisis among the low income population of Puerto Rico. [San Juan, P. R: Office of Economic Opportunity of Puerto Rico. 1977.