Dyfyniad APA

Smol, J. P. (2002). Pollution of lakes and rivers: A paleoenvironmental perspective. Arnold.

Dyfyniad Arddull Chicago

Smol, John P. Pollution of Lakes and Rivers: A Paleoenvironmental Perspective. London: Arnold, 2002.

Dyfyniad MLA

Smol, John P. Pollution of Lakes and Rivers: A Paleoenvironmental Perspective. Arnold, 2002.

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