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

By Duffield, A. J..
Salt Lake City, UT : Project Gutenberg, 2014 .
1 online resource : , Release date is 2014-06-16

Guano: A Treatise of Practical Information for Farmers

By Robinson, Solon,.
Salt Lake City, UT : Project Gutenberg, 2006 .
1 online resource : , Release date is 2006-12-23