Cox, I. W. (1934). What About Sterilization? Washington, D.C..
Dyfyniad Arddull ChicagoCox, Ignatius W. What About Sterilization? Washington, D.C., 1934.
Dyfyniad MLACox, Ignatius W. What About Sterilization? Washington, D.C., 1934.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.