s.n., etc.]

Holt

KET, the Kentucky Network,

Allen & Unwin,

Houghton Mifflin,

University of California Press,

The Council,

Cooperative Extension Service, University of Wyoming,

Wisdom Society for the Advancement of Knowledge, Learning and Research in Education,

Wyoming Community College Commision,

State and Public Library Services Branch, Division of Library Programs, Office of Libraries and Learning Technologies, U.S. Dept. of Education,

U.S. Dept. of Education, Assistant Secretary for Educational Research and Improvement,