Clark, F. (1964). Contemporary mathematics. Franklin Watts.
Dyfyniad Arddull ChicagoClark, Frank. Contemporary Mathematics. New York: Franklin Watts, 1964.
Dyfyniad MLAClark, Frank. Contemporary Mathematics. Franklin Watts, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.