Schulman, Edward. <br/><br/>
Tree rings and history in the western United States 

<br/><br/> Sobretiro de: Smithsonian Report for 1955. pp. 459-473, 1956 
<br/><br/><label>LCCN: </label>56910 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anillos de crecimiento.