References
- Exline , Joseph D. 1975 . “A Tornado in a Box: Investigating Energy Relationships.” . Science Activities , 12M September/October : 27 – 29 .
- Exline , Joseph D. 1975 . Individualized Techniques for Teaching Earth Science , West Nyack , New York : Parker Publishing Company .
- Exline , Joseph D. 1971 . “The Dishpan Earth.” . Science Activities , 5 April : 18 – 21 .
- Harris , Miles F. 1973 . Investigating the Earth , Boston : Houghton Mifflin Company . and others