Dyfyniad APA

Lassey, W. R. (1977). Planning in Rural Enviornments. McGraw-Hill.

Dyfyniad Arddull Chicago

Lassey, William R. Planning in Rural Enviornments. New York: McGraw-Hill, 1977.

Dyfyniad MLA

Lassey, William R. Planning in Rural Enviornments. McGraw-Hill, 1977.

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