Harthill, Marion P., 1909- <br/><br/>
Common mosses of the Pacific coast / 
Marion P. Harthill, Irene O'Connor 
 - Healdsburg, Calif. :  Naturegraph Publishers,  1975 
 - 119 p. :  ill. ;  20 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0879610255 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mosses--Pacific States--Identification