APA (7th ed.) Citation

Workshop Center for Open Education (New York, N.Y.), Dropkin, R., & Tobier, A. (1973). Science in the open classroom. Workshop Center for Open Education.

Chicago Style (17th ed.) Citation

Workshop 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.

MLA (8th ed.) Citation

Workshop Center for Open Education (New York, N.Y.), et al. Science in the Open Classroom. Workshop Center for Open Education, 1973.