Dyfyniad APA

Poulsen, B. (2008). Dutch herring: An environmental history, c. 1600-1860. Aksant.

Dyfyniad Arddull Chicago

Poulsen, Bo. Dutch Herring: An Environmental History, C. 1600-1860. Amsterdam: Aksant, 2008.

Dyfyniad MLA

Poulsen, Bo. Dutch Herring: An Environmental History, C. 1600-1860. Aksant, 2008.

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