Style de citation APA (7e éd.)

Sales, A. (2002). Dwindling water supply world's biggest problem. IN Sales talk [column]. Manila Bulletin.

Style de citation Chicago (17e éd.)

Sales, Arthur. "Dwindling Water Supply World's Biggest Problem. IN Sales Talk [column]." Manila Bulletin 2002.

Style de citation MLA (9e éd.)

Sales, Arthur. "Dwindling Water Supply World's Biggest Problem. IN Sales Talk [column]." Manila Bulletin, 2002.