Nagano, Tadashi <br/><br/>
Homotopy invariants in differential geometry. 

 - Providence, R.I.:  American Mathematical Society,  1970. 
 - 41 p.:  26 cm. 
 - Memoirs of the American Mathematical Society;  no. 100. .
<br/><br/>Bibliography: p. 40-41. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential topology.