Miller, M., & Lee, M. (1994). Estimation investigations: More than 65 activities to build mathematical reasoning and number sense. Scholastic Professional Books.
Chicago-referens (17:e uppl.)Miller, Marcia, och Martin Lee. Estimation Investigations: More than 65 Activities to Build Mathematical Reasoning and Number Sense. New York: Scholastic Professional Books, 1994.
MLA-referens (9:e uppl.)Miller, Marcia, och Martin Lee. Estimation Investigations: More than 65 Activities to Build Mathematical Reasoning and Number Sense. Scholastic Professional Books, 1994.
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