APA Style

Postel,S, Westcoh, C.. (1985). Conserving Water : The Untapped alternative . USA: Worldwatch Institute.

Chicago Style

Postel,S, Westcoh, C.. Conserving Water : The Untapped alternative. USA: Worldwatch Institute, 1985. .

MLA Style

Postel,S, Westcoh, C.. Conserving Water : The Untapped alternative. USA: Worldwatch Institute, 1985. .

Turabian Style

Postel,S, Westcoh, C.. Conserving Water : The Untapped alternative. USA: Worldwatch Institute, 1985. .