University of Texas. Bureau of Business Research & Dale, A. G. (1955). An economic survey method for small areas.
Dyfyniad Arddull ChicagoUniversity of Texas. Bureau of Business Research and Alfred G. Dale. An Economic Survey Method for Small Areas. Austin, 1955.
Dyfyniad MLAUniversity of Texas. Bureau of Business Research and Alfred G. Dale. An Economic Survey Method for Small Areas. 1955.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.