California. State Department of Education. (1987). Science model curriculum guide, kindergarten through grade eight. California State Dept. of Education.
Chicago-Zitierstil (17. Ausg.)California. State Department of Education. Science Model Curriculum Guide, Kindergarten Through Grade Eight. Sacramento: California State Dept. of Education, 1987.
MLA-Zitierstil (9. Ausg.)California. State Department of Education. Science Model Curriculum Guide, Kindergarten Through Grade Eight. California State Dept. of Education, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.