Workshop Center for Open Education (New York, N.Y.), Dropkin, R., & Tobier, A. (1973). Science in the open classroom. Workshop Center for Open Education.
Dyfyniad Arddull ChicagoWorkshop Center for Open Education (New York, N.Y.), Ruth Dropkin, and Arthur Tobier. Science in the Open Classroom. New York: Workshop Center for Open Education, 1973.
Dyfyniad MLAWorkshop Center for Open Education (New York, N.Y.), et al. Science in the Open Classroom. Workshop Center for Open Education, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.