2001
1988
1982
1980
1979
1963
“A survey of urban 4-H club work in the U.S.”. Extension Circular.
. 1963. 1962
1947
. 1947.
1935
“Recommended policies governing 4-H club work: Findings and recommendations”. U.S. Dept Agri Extension Service, Stencil No. 9577.
. 1935.