Bancroft, J. Whitney, and Gail Poffenberger Yeiser. 1985. “Rhode Island 4-H Leadership Development: Impact Study.” BibTeXEndNote X3 XMLEndNote 7 XMLRIS
Yeiser, Gail Poffenberger. 1982. “Professional Competencies Needed by 4-H Extension Agents As Acquired During Pre-Service, First Year and Continuing In-Service Training”. University of Maryland. BibTeXEndNote X3 XMLEndNote 7 XMLRIS