Prigo, R. (2007). Making physics fun: Key concepts, classroom activities, & everyday examples, grades K-8. Corwin Press.
Chicago-referens (17:e uppl.)Prigo, Robert. Making Physics Fun: Key Concepts, Classroom Activities, & Everyday Examples, Grades K-8. Thousand Oaks, Calif: Corwin Press, 2007.
MLA-referens (9:e uppl.)Prigo, Robert. Making Physics Fun: Key Concepts, Classroom Activities, & Everyday Examples, Grades K-8. Corwin Press, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.