Abelson, Harold ; diSessa, Andrea A. — Turtle geometry : the computer as a medium for exploring mathematics. — Cambridge : MIT Press, 1981. — 477 p. — Includes an index. — ISBN 0262010631.
Book / Essay - CR+D call code: ESS ABE 00027029 - Document in English - State in the CR+D Collection : ORIGINAL
The CR+D Database contains the following indexation: (Please note that indexation is not always exhaustive.)