Dyfyniad APA

Hanson, G. (2010). Regulating low-skilled immigration in the United States. AEI Press.

Dyfyniad Arddull Chicago

Hanson, Gordon. Regulating Low-skilled Immigration in the United States. Washington, D.C.: AEI Press, 2010.

Dyfyniad MLA

Hanson, Gordon. Regulating Low-skilled Immigration in the United States. AEI Press, 2010.

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