Gemini

Bu kavram başka kaynaklarda da geçiyor

• French-English and English-French Commercial Dictionary (1918)
• The American Dictionary and Cyclopedia (1910)
• Chamber's Twientieth Century Dictionary (1908)
• Nuttall Encyclopedia (1907)
• Pears Shilling Cyclopedia (1898)
• An Illustrated Encyclopedic Medical Dictionary (1893)
• Dictionary of Science, Literature and Art (1854)