Kreyszig, Erwin <br/><br/>
Introductory functional analysis with applications 
Erwin Kreyszig 
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 - John Wiley & Sons, New York  1978 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Functional analysis-- Mathematics
<br/><br/><label>Dewey Class. No.: </label>R  515.7  KRE-I