Haag, Vincent H.  4  0   <br/><br/>
Introduction to secondary school mathematics /        6 
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Vincent H. Haag, Edwin A. Dudley. 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>ISSN: </label>2 
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<br/><br/><label>Nat. Bib. No.: </label> 2 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.    --------20--
<br/><br/><label>Subjects--Geographic Terms: </label><br/>--------20--
<br/><br/><label>Index Terms--Genre/Form: </label><br/>----2
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