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Bu kavram başka kaynaklarda da geçiyor

• British Encyclopedia (1933)
• Adair's New Encyclopedia (1923)
• Stedman's Medical Dictionary: A Practical Medical Dictionary (1920)
• Everybody's Encyelopedia (1912)
• The American Dictionary and Cyclopedia (1910)
• The American Dictionary and Cyclopedia (1910)
• Chamber's Twientieth Century Dictionary (1908)
• An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
• The Handy Cyclopedia of Common Things and Biographical Dictionary (1901)
• Chandler's Encyclopedia (1898)
• Phrases and Names Their Origins and Meanings (1896)
• The Student's Medical Dictionary (1896)
• An Illustrated Encyclopedic Medical Dictionary (1893)
• An Illustrated Encyclopedic Medical Dictionary (1892)
• Illustrated Marine Encyclopedia (1890)