Rogoff, Mortimer <br/><br/>
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Mortimer Rogoff 
 - New York  Norton  c1979 
 - xiv, 418 p.  ill.  24 cm 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Navigation<br/>Calculators
<br/><br/><label>Dewey Class. No.: </label>623.89