NY Public Library or Brooklyn Public Library: Flying Around Book Ops. RT @wortfeld…https://t.co/Bogjjul2Jv #Buchsortiermaschinendrohnenvideo
— Markus Trapp (@textundblog) July 9, 2014NY Public Library or Brooklyn Public Library: Flying Around Book Ops. RT @wortfeld…https://t.co/Bogjjul2Jv #Buchsortiermaschinendrohnenvideo
— Markus Trapp (@textundblog) July 9, 2014