Degrood David H <br/><br/>
Haeckel's theory of the unity of nature    a monograph in the history on of philosophy 
Degrood David H 
 - Boston  Christopher Pub House       1965 
 - 98p.  cm. 
<br/><br/> Bib 97-98p 
<br/><br/><label>Standard No.: </label>67,608 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R3xM34, K5