Pica

Bu kavram başka kaynaklarda da geçiyor

• The American Illustrated Medical Dictionary (1913)
• Chamber's Twientieth Century Dictionary (1908)
• An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
• The Student's Medical Dictionary (1896)
• An Illustrated Encyclopedic Medical Dictionary (1894)
• An Illustrated Dictionary of Words Used In Art and Archealogy. (1883)
• Zell's Condensed Dictionary (1879)
• Dictionary of Science, Literature and Art (1854)
• Dictionary of Science, Literature and Art (1842)
• The American Dictionary and Cyclopedia