Prentice-Hall,

National Center on Adult Literacy, University of Pennsylvania ; U.S. Dept. of Education, Office of Educational Research and Improvement, Educational Resources Information Center,

Wiley,

Clearinghouse on Information & Technology,

Dosoris Press,

L. Erlbaum Associates,

Math/Science Network, Lawrence Hall of Science, University of California,

Lawrence Hall of Science, University of California,

Benjamin/Cummings,

Benjamin/Cummings Pub. Co.,

Addison-Wesley,

Addison-Wesley,