The rural school and hookworm disease - Ferrell, John A. (John Atkinson), 1880- (Washington : G.P.O., 1914)
Copies 1 and 2 with: University extension in the United States / Louis E. Reber. Washington : Govt. Print. Off., 1914. Bound together subsequent to publication.
Includes bibliographical references.
Keywords: Hookworm disease; Rural schools