Dyfyniad APA

(1980). Special study on economic change. Washington: U.S. Government Printing Office.

Dyfyniad Arddull Chicago

Special Study On Economic Change. Washington: U.S. Government Printing Office, 1980.

Dyfyniad MLA

Special Study On Economic Change. Washington: U.S. Government Printing Office, 1980.

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