Lau, Duane Burnell. 1957. “Evaluation of the Lucas County 4-H Adult Advisor Training Meeting: The First Step in a Complete Evaluation of the County 4-H Club Advisors Training Program.” BibTeXEndNote X3 XMLEndNote 7 XMLRIS
Lau, Duane Burnell. 1964. “A Profile and Comparison of Urban and Rural Volunteer 4-H Club Advisors in Twelve Selected Ohio Counties”. University of Maryland. BibTeXEndNote X3 XMLEndNote 7 XMLRIS
