Palmer, J D <br/><br/>
Biological clocks of the tidal zone.  [electronic resource] 

 -  Scientific American  Feb 1975 
 - 70-9 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8733 
<br/><br/><label>Standard No.: </label>10.1038/scientificamerican0275-70  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Biological Clocks<br/>Marine Biology<br/>Water Movements