Cita APA

(1974). Water quality standars regulation. San Juan, P.R.: Commonwealth of Puerto Rico Office of the Governor Environmental Quality Board.

Citación estilo Chicago

Water Quality Standars Regulation. San Juan, P.R.: Commonwealth of Puerto Rico Office of the Governor Environmental Quality Board, 1974.

Cita MLA

Water Quality Standars Regulation. San Juan, P.R.: Commonwealth of Puerto Rico Office of the Governor Environmental Quality Board, 1974.