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Home > Iowa Academy of Science > Journals & Newsletters > Iowa Science Teachers Journal > Volume 27 > Number 2 (1990)

 

Document Type

Article

Publication Date

Autumn 1990

Journal Title

Iowa Science Teachers Journal

Volume

27

Issue

2

First Page

18

Last Page

20

Copyright

© Copyright 1990 by the Iowa Academy of Science

Language

en

File Format

application/pdf

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