Neil Morgan. (1967). The Pacific states: California , Oregon, Washington. New York: Time.
Dyfyniad Arddull ChicagoNeil Morgan. The Pacific States: California , Oregon, Washington. New York: Time, 1967.
Dyfyniad MLANeil Morgan. The Pacific States: California , Oregon, Washington. New York: Time, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.