Chesterton, G. K. (1927). Social reform versus birth control. Simpkin, Marshall, Hamilton, Kent.
Dyfyniad Arddull ChicagoChesterton, G. K. Social Reform Versus Birth Control. London: Simpkin, Marshall, Hamilton, Kent, 1927.
Dyfyniad MLAChesterton, G. K. Social Reform Versus Birth Control. Simpkin, Marshall, Hamilton, Kent, 1927.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.