Crotchet

Bu kavram başka kaynaklarda da geçiyor

• Stedman's Medical Dictionary: A Practical Medical Dictionary (1920)
• A Dictionary of Military Terms (1918)
• The American Illustrated Medical Dictionary (1913)
• Chamber's Twientieth Century Dictionary (1908)
• An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
• Pears Shilling Cyclopedia (1898)
• An Illustrated Encyclopedic Medical Dictionary (1892)
• A Military Dictionary and Gazetteer (1881)
• Zell's Condensed Dictionary (1879)
• Dictionary of Science, Literature and Art (1854)
• Dictionary of Science, Literature and Art (1842)