Greenhaven Press,

Modern Language Association of America,

Infosources Pub.,

Varneys Press,

Hallmark Press,

National Aeronautics and Space Administration, Office of Human Resources and Education, Education Division : Office of Space Science, Solar System Exploration Division,

Appalachia Educational Laboratory ; U.S. Dept. of Education, Office of Educational Research and Improvement, Educational Resources Information Center,

Modern Language Association,

Random House,

Grolier Educational Corp.,

Genealogical Publishing Co.,

Research and Education Association,