KnowlesMS: Historical development of the adult education movement in the United States, in KnowlesMS: Handbook of Adult Education in the United States. Chicago, Adult Education Association of the U.S.A., 1960 p 16.
2.
BellWV: Finance, legislation, and public policy for adult education, in KnowlesMS: Handbook for Adult Education in the United States. Chicago, Adult Education Association of the U.S.A., 1960 p 145.
3.
MathewsJL: The Cooperative Extension Service, in KnowlesMS: Handbook for Adult Education in the United States. Chicago, Adult Education Association of the U.S.A., 1960 p 228.
4.
SheatsPH: Present trends and future strategies in adult education, in KnowlesMS: Handbook for Adult Education in the United States. Chicago, Adult Education Association of the U.S.A., 1960 p 557.
5.
VinesCA: ECOP Health Education Task Force Report. Washington, U.S. Department of Agriculture, 1973.
