Sir Humphry Davy, John Davy (1839). “The Collected Works of Sir Humphry Davy, Bart. ...: Memoirs of the life of Sir Humphry Davy, by his brother, John Davy”, p.448
Titus Maccius Plautus (2012). “Amphitryo, Asinaria, Aulularia, Bacchides, Captivi Amphitryon, The Comedy of Asses, The Pot of Gold, The Two Bacchises, The Captives”, p.146, tredition
Preserving traditional marriage: a view from the states : hearing before the Committee on the Judiciary, United States Senate, One Hundred Eighth Congress, second session, June 22, 2004.