Dyfyniad APA

National Rivers and Harbors Congress. Proceedings of the ... convention. s.n.].

Dyfyniad Arddull Chicago

National Rivers and Harbors Congress. Proceedings of the ... Convention. [S.l.: s.n.].

Dyfyniad MLA

National Rivers and Harbors Congress. Proceedings of the ... Convention. s.n.].

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