Commercial Fertilizer Tests Conducted on Pinto Beans, Small Grains, and Potatoes and Variety Tests Conducted of Pinto Beans and Potates in Coconino County
LCSH SubjectsUniversity of Arizona -- Agricultural Extension Service -- Records and correspondence.
Agricultural extension work -- Arizona.
County agricultural agents -- Arizona.
Sociology, Rural -- Arizona.
Agriculture -- Arizona.
Arizona -- History, Local -- Photographs.