National Association for Research in Science Teaching, 50th annual meeting :
abstracts of presented papers :
Cincinnati, Ohio, March 22-24, 1977.

APA Citation

National Association for Research in Science Teaching., ERIC Center for Science, M. (1977). National Association for Research in Science Teaching, 50th annual meeting: abstracts of presented papers. Columbus, Ohio: ERIC Center for Science, Mathematics, and Environmental Education.

MLA Citation

National Association for Research in Science Teaching, and Mathematics ERIC Center for Science. National Association for Research In Science Teaching, 50th Annual Meeting: Abstracts of Presented Papers. Columbus, Ohio: ERIC Center for Science, Mathematics, and Environmental Education, 1977.