Edwards, C. D. (1949). Maintaining competition: Requisites of a governmental policy. McGraw-Hill Book Co.
Dyfyniad Arddull ChicagoEdwards, Corwin D. Maintaining Competition: Requisites of a Governmental Policy. New York: McGraw-Hill Book Co, 1949.
Dyfyniad MLAEdwards, Corwin D. Maintaining Competition: Requisites of a Governmental Policy. McGraw-Hill Book Co, 1949.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.