Duffield, Alexander James <br/><br/>
Peru in the Guano Age :  Being a Short Account of a Recent Visit to the Guano Deposits With Some Reflections on the Money They Have Produced and the Uses to Which it has Been Applied  [electronic resource] / 
Alexander James Duffield 
 -  Project Gutenberg,  2014 
 - Project Gutenberg  45998 .
<br/><br/> Public domain in the USA. 
<br/><br/>Electronic text