00884nam0-22003011i-450-9900009504204033210-262-01063-1000095042FED01000095042(Aleph)000095042FED0100009504220000920d1980----km-y0itay50------baengTurtle GeometryThe Computer as a Medium for Exploring MathematicsHarold Abelson, Andrea A. diSessaCambridge [Mass.]The MIT Press1980Teoria della programmazione e utilizzazione dei computersSoftware510.78Abelson,Harold27443Disessa,AndreaITUNINARICAUNIMARCBK9900009504204033218B-15613665FI1FI1Turtle Geometry357384UNINAING01