Porteous, Ian R <br/><br/>
Topological geometry 
Ian R Porteous 
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 - Van Nostrand Reinhold Co., London  1969 
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 - .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry-- Mathematics
<br/><br/><label>Dewey Class. No.: </label>516  POR-T