Dyfyniad APA

D'itri, F. M. (1986). Artificial reefs: Marine and fresh water applications. Lewis.

Dyfyniad Arddull Chicago

D'itri, Frank M. Artificial Reefs: Marine and Fresh Water Applications. Michigan: Lewis, 1986.

Dyfyniad MLA

D'itri, Frank M. Artificial Reefs: Marine and Fresh Water Applications. Lewis, 1986.

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