(1963). Material objects: A science unit for primary grades ; teacher's manual (Trial ed.). Science Curriculum Improvement Study.
Citación estilo ChicagoMaterial Objects: A Science Unit for Primary Grades ; Teacher's Manual. Trial ed. Berkeley, CA: Science Curriculum Improvement Study, 1963.
Cita MLAMaterial Objects: A Science Unit for Primary Grades ; Teacher's Manual. Trial ed. Science Curriculum Improvement Study, 1963.
Warning: These citations may not always be 100% accurate.