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| Understanding Electricity
and Electronics. Peter Buban & Marshall L. Schmitt. Copyright
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| Peters Quotations: Ideas For Our Time.
Dr. Laurence J. Peter. Copyright 1977, pg. 457 |
| The Oxford Desk Dictionary and Thesaurus.
Berkley Books, New York. Copyright 1997, pg 243 |
| Dictionary For The Electrician with Formulas.
Tom Henry. Copyright 1997. |
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