De Vera-Ruiz, E. P675-million reservoir to be constructed in Sorsogon-NIA. IN View- Features. Manila Bulletin.
Chicago-referens (17:e uppl.)De Vera-Ruiz, Ellalyn. "P675-million Reservoir to Be Constructed in Sorsogon-NIA. IN View- Features." Manila Bulletin .
MLA-referens (9:e uppl.)De Vera-Ruiz, Ellalyn. "P675-million Reservoir to Be Constructed in Sorsogon-NIA. IN View- Features." Manila Bulletin, .
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.