APA

University of Puerto Rico Rio Piedras campus, . (19781982). Noticeero. San Juan, P.R: Center for Energy and Environment Research.

Chicago

University of Puerto Rico Rio Piedras campus, . 19781982. Noticeero. San Juan, P.R: Center for Energy and Environment Research.

Harvard

University of Puerto Rico Rio Piedras campus, . (19781982). Noticeero. San Juan, P.R: Center for Energy and Environment Research.

MLA

University of Puerto Rico Rio Piedras campus, . Noticeero. San Juan, P.R: Center for Energy and Environment Research. 19781982.