Dyfyniad APA

Kneese, A. V. (1984). Measuring the benefits of clean air and water. Resources for the Future.

Dyfyniad Arddull Chicago

Kneese, Allen V. Measuring the Benefits of Clean Air and Water. Washington: Resources for the Future, 1984.

Dyfyniad MLA

Kneese, Allen V. Measuring the Benefits of Clean Air and Water. Resources for the Future, 1984.

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