Dyfyniad APA

Hammond (Ind.). Chamber of Commerce. (1928). Hammond-Calumet region facts ([4th ed.].).

Dyfyniad Arddull Chicago

Hammond (Ind.). Chamber of Commerce. Hammond-Calumet Region Facts. [4th ed.]. Hammond, Ind, 1928.

Dyfyniad MLA

Hammond (Ind.). Chamber of Commerce. Hammond-Calumet Region Facts. [4th ed.]. 1928.

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