Morris, J. P. (1985). A comparison of three instructional strategies for teaching bilateral and rotational symmetry to second grade students. Univ. Microfilms Internat.
Chicago-Zitierstil (17. Ausg.)Morris, Janet P. A Comparison of Three Instructional Strategies for Teaching Bilateral and Rotational Symmetry to Second Grade Students. Ann Arbor, Mich: Univ. Microfilms Internat, 1985.
MLA-Zitierstil (9. Ausg.)Morris, Janet P. A Comparison of Three Instructional Strategies for Teaching Bilateral and Rotational Symmetry to Second Grade Students. Univ. Microfilms Internat, 1985.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.