Dyfyniad APA

Sanborn Map Company & Library of Congress. Geography and Map Division. Reference and Bibliography Section. (1983). Sanborn fire insurance maps. Chadwyck-Healey.

Dyfyniad Arddull Chicago

Sanborn Map Company and Library of Congress. Geography and Map Division. Reference and Bibliography Section. Sanborn Fire Insurance Maps. Teaneck, N.J.: Chadwyck-Healey, 1983.

Dyfyniad MLA

Sanborn Map Company and Library of Congress. Geography and Map Division. Reference and Bibliography Section. Sanborn Fire Insurance Maps. Chadwyck-Healey, 1983.

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