Helton, S. M., & Micklo, S. J. (1997). The elementary math teacher's book of lists: With ready-to-use patterns and worksheets. Center for Applied Research in Education.
Citace podle Chicago (17th ed.)Helton, Sonia M., a Stephen J. Micklo. The Elementary Math Teacher's Book of Lists: With Ready-to-use Patterns and Worksheets. West Nyack, N.Y.: Center for Applied Research in Education, 1997.
Citace podle MLA (9th ed.)Helton, Sonia M., a Stephen J. Micklo. The Elementary Math Teacher's Book of Lists: With Ready-to-use Patterns and Worksheets. Center for Applied Research in Education, 1997.
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