North Carolina. Dept. of Conservation and Development. (1938). Bulletin. Edwards & Broughton Co..
Dyfyniad Arddull ChicagoNorth Carolina. Dept. of Conservation and Development. Bulletin. Raleigh: Edwards & Broughton Co., 1938.
Dyfyniad MLANorth Carolina. Dept. of Conservation and Development. Bulletin. Edwards & Broughton Co., 1938.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.