Stephenson, Thomas A. <br/><br/>
Life between tidemarks on rocky shores / 
T. A. Stephenson, Anne Stephenson. 
 - San Francisco :  W. H. Freeman,  [1972] 
 - xii, 425 p. :  ill. 
<br/><br/><label>ISBN: </label>0716706873 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intertidal zonation.<br/>Seashore ecology.