Mansfield, E. (1986). Basic statistics: With applications. W.W.Norton.
Dyfyniad Arddull ChicagoMansfield, Edwin. Basic Statistics: With Applications. New York: W.W.Norton, 1986.
Dyfyniad MLAMansfield, Edwin. Basic Statistics: With Applications. W.W.Norton, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.