Christensen, M. Clyde <br/><br/>
The Molds and Man 

 - London :  University of Minnesota press,  1965. 
 - VIII, 284p.;  ill.  22cm 
<br/><br/><label>ISBN: </label>0816603480 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bryophytes
<br/><br/><label>Dewey Class. No.: </label>589.2   / CHR