Elementary Science Study (Education Development Center) & Gillmor, M. S. (1971). Teacher's guide for Starting from seeds: A study unit. Webster Division, McGraw-Hill Book Co..
Citace podle Chicago (17th ed.)Elementary Science Study (Education Development Center) a Mary S. Gillmor. Teacher's Guide for Starting from Seeds: A Study Unit. New York: Webster Division, McGraw-Hill Book Co., 1971.
Citace podle MLA (8th ed.)Elementary Science Study (Education Development Center) a Mary S. Gillmor. Teacher's Guide for Starting from Seeds: A Study Unit. Webster Division, McGraw-Hill Book Co., 1971.
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