Dyfyniad APA

Cedergren, H. R. (1989). Seepage, drainage, and flow nets. New York: Wiley.

Dyfyniad Arddull Chicago

Cedergren, Harry R. Seepage, Drainage, and Flow Nets. New York: Wiley, 1989.

Dyfyniad MLA

Cedergren, Harry R. Seepage, Drainage, and Flow Nets. New York: Wiley, 1989.

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