Tham khảo Legnica

  1. ↑ Christopher Duffy, The military experience in the age of reason, trang 187
  2. ↑ Christopher Duffy, The military experience in the age of reason, trang 324
  3. ↑ Thomas Carlyle, History of Friedrich the Second Called Frederick the Great: The Works of Thomas Carlyle, các trang 300
  4. ↑ Thomas Carlyle, History of Friedrich the Second Called Frederick the Great: The Works of Thomas Carlyle, các trang 301-302.