Title

Bu kavram başka kaynaklarda da geçiyor

• Cyclopedia of Telephony and Telegraphy (1919)
• A Law Dictionary (1910)
• Chamber's Twientieth Century Dictionary (1908)
• Pears Shilling Cyclopedia (1898)
• Webster's Practical Dictionary- A Practical Dictionary of the Englih Language (1884)
• A Dictionary of the First or Oldest Words in the English Language (1862)
• A Dictionary of the Vulgar Tongue (1811)
• Title-deed, ti -ti-deed, s — Nuttall's Standard Dictionary of the English Language (1890)