Zoological Society Bulletin 33 (4) / 
New York Zoological Society. 
 - New York, USA :  New York Zoological Society,   July-August 1930. 
 - 133-172 pp. :  26 cm. 
<br/><br/> Astor expedition to the Galápagos Islands /  Mountain party on Indefatigable Island /  Vegetation of Indefatigable Island /  Charles Haskins Townsend.  Kermit Roosevelt.  Henry K. Svenson.  (pp. 135-155) --   (pp. 156-162) --   (p. 163). 
<br/><br/><br/>Inglés 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historia natural<br/>Natural history<br/>Ciencias básicas<br/>Pure science
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Islas Galápagos<br/>Galapagos Islands
<br/><br/><label>Dewey Class. No.: </label>508