1955
“Extension Teaching Methods: and other factors that influence adoption of agricultural and home economics practices”. Circular (University of Missouri. Extension) . Columbia, MO: University of Missouri. Extension. https://hdl.handle.net/10355/50569
. 1955. 1935
“The effectiveness of 4-H club work: A study of boys' and girls' club work in a cross-section of Middlesex County, Mass.”. Cooperative Extension Work, USDA.
. 1935. 1931
“Local leadership and its training in 4-H club work”. USDA Extension Service Circular.
. 1931. 1929
“Club data from Extension studies”. Extension Service Circular 107.
. 1929. 1926
“Club data from Extension studies (4-H club work)”. Extension Service Circular 4.
. 1926. “A report of club data from Extension studies”. Extension Circular.
. 1926.