TY - BOOK AU - Goldenberg,E.Paul AU - Feurzeig,W. ED - MIT Press TI - Exploring language with Logo SN - 0262570653 U1 - 005.133 22 PY - 1987///. CY - Cambridge, Mass.: PB - MIT Press, KW - LOGO (Computer program language) N1 - Includes bibliography: p. 309-311 and index ER -