Dufay, Jean,  1896-1967 <br/><br/>
Galactic nebulae and interstellar matter / 
Jean Dufay 
 - London :  Hutchinson,  1957 
 - 352 p. ;  20 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nebulae<br/>Interstellar matter