Dyfyniad APA

(1984). Annual Housing Survey, 1980 [United States] National File / United States Department of Commerce. Bureau of the Census. [electronic resource].

Dyfyniad Arddull Chicago

Annual Housing Survey, 1980 [United States] National File / United States Department of Commerce. Bureau of the Census. [electronic Resource]. 1984.

Dyfyniad MLA

Annual Housing Survey, 1980 [United States] National File / United States Department of Commerce. Bureau of the Census. [electronic Resource]. 1984.

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