Perspective-glass

Bu kavram başka kaynaklarda da geçiyor

• perspective glass — The American Dictionary and Cyclopedia
• Glass — A Dictionary of Scientific Terms (1927)
• GLASS — Adair's New Encyclopedia (1923)
• glass — Stedman's Medical Dictionary: A Practical Medical Dictionary (1920)
• Perspective — French-English and English-French Commercial Dictionary (1918)
• Glass — Encyclopedia Sinica (1917)
• Glass — Hawkins' Electrical Dictionary (1915)
• Glass — Everybody's Encyelopedia (1912)
• [glass — The American Dictionary and Cyclopedia (1910)
• PERSPECTIVE — Jack's Reference Book for Home and Office : An Encyclopaedia of General Information: General Information (1909)
• Glass — Chamber's Twientieth Century Dictionary (1908)
• Perspective — Chamber's Twientieth Century Dictionary (1908)
• Glass — An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
• Glass — A Concise Dictionary of Egyptian Archeology (1902)
• Glass — The Handy Cyclopedia of Common Things and Biographical Dictionary (1901)