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|bLHEB|cHE004095|d300|ePAR|tDDC|m0|pBOOK|fCBS|zCIR
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|aParker, Janice.
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245 |
10
|
|aMessengers, Morse code, and modems / |cby Janice Parker.
|
246 |
13
|
|aMessengers Morse code and modems
|
260 |
|
|aCalgary, Alta. : |bWeigl Educational Publishers, |c2000.
|
300 |
|
|a48 p. : |bcol. ill. ; |c26 cm.
|
490 |
0
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|aScience @ work:communication.
|
500 |
|
|aIncludes bibliographical references and index.
|
650 |
0
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|aTelecommunication--Juvenile literature.
|
650 |
0
|
|aCommunication.
|
983 |
|
|aKCBS
|