Dyfyniad APA

Wollman, N., & Bonem, G. W. (1971). Outlook for water. Published for Resources for the Future by the Johns Hopkins Press.

Dyfyniad Arddull Chicago

Wollman, Nathaniel, and Gilbert W. Bonem. Outlook for Water. Baltimore: Published for Resources for the Future by the Johns Hopkins Press, 1971.

Dyfyniad MLA

Wollman, Nathaniel, and Gilbert W. Bonem. Outlook for Water. Published for Resources for the Future by the Johns Hopkins Press, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.