University of Wisconsin. (1948). Land economics. University of Wisconsin.
Dyfyniad Arddull ChicagoUniversity of Wisconsin. Land Economics. Madison, Wis.: University of Wisconsin, 1948.
Dyfyniad MLAUniversity of Wisconsin. Land Economics. University of Wisconsin, 1948.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.