Dyfyniad APA
Cedergren Harry R. Seepage, drainage and flow nets (3 rd ed.). John Willey & Sons.
Dyfyniad Arddull Chicago
Cedergren Harry R. Seepage, Drainage and Flow Nets. 3 rd ed. New York: John Willey & Sons.
Dyfyniad MLA
Cedergren Harry R. Seepage, Drainage and Flow Nets. 3 rd ed. John Willey & Sons.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.