APA

Autoridad de Acueductos y Alcantarillados de Puerto Rico, . (1970). A special report on Puerto Rico aqueduct and sewer authority. San Juan, P.R: Government Development Bank of Puerto Rico.

Chicago

Autoridad de Acueductos y Alcantarillados de Puerto Rico, . 1970. A special report on Puerto Rico aqueduct and sewer authority. San Juan, P.R: Government Development Bank of Puerto Rico.

Harvard

Autoridad de Acueductos y Alcantarillados de Puerto Rico, . (1970). A special report on Puerto Rico aqueduct and sewer authority. San Juan, P.R: Government Development Bank of Puerto Rico.

MLA

Autoridad de Acueductos y Alcantarillados de Puerto Rico, . A special report on Puerto Rico aqueduct and sewer authority. San Juan, P.R: Government Development Bank of Puerto Rico. 1970.