Boardman J M <br/><br/>
Homotopy invariant  algebraic structures on topological spaces. 
Boardman J M; Vogt R M 
 -  1973 
<br/><br/><label>Standard No.: </label>121886 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B316:25, L3