Douglas, A. E. <br/><br/>
Climatic cycles and tree growth 

 - Washington :  Carnegie Institution of Washington,  1919-36 
 - v. 
 - Carnegie Institution, Publication 289 .
 - Carnegie Institution, Publication 289 .
<br/><br/>Contenido : v.1 A study of the annual rings of trees in relation to climate and solar activity .- v.2 A study of the annual rings of trees in relation to climate and solar activity .- v.3 A study of cycles 
<br/><br/><label>LCCN: </label>21150 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anillos de crecimiento.