00441nam a2200121Ia 450000500170000000800410001702000150005808200150007310000220008824501630011026000370027330000090031020260205105144.0260111s9999||||xx |||||||||||||| ||und||  a8125007466  a925  G982J  aGutenberg, Johann 0aScientists who changed the world.: Johann Gutenberg - The story of invcention of movable type and how printing led to a knowledge explosion/by Michael Pollard  aMumbaibOrient Longman Ltdc1998  a64p.