National Science Teachers Association & McKeever, H. C. (1981). Playing with energy: Classroom games and simulations. National Science Teachers Association.
Chicago Style (17th ed.) CitationNational Science Teachers Association and Helen Carey McKeever. Playing with Energy: Classroom Games and Simulations. Washington, DC: National Science Teachers Association, 1981.
MLA (9th ed.) CitationNational Science Teachers Association and Helen Carey McKeever. Playing with Energy: Classroom Games and Simulations. National Science Teachers Association, 1981.
Warning: These citations may not always be 100% accurate.