Murdock, J., Kamischke, E., & Kamischke, E. (2000). Discovering algebra: An investigative approach (preliminary ed. ; teacher's materials.). Key Curriculum Press.
Chicago-referens (17:e uppl.)Murdock, Jerald, Ellen Kamischke, och Eric Kamischke. Discovering Algebra: An Investigative Approach. preliminary ed. ; teacher's materials. Emeryville, CA: Key Curriculum Press, 2000.
MLA-referens (9:e uppl.)Murdock, Jerald, et al. Discovering Algebra: An Investigative Approach. preliminary ed. ; teacher's materials. Key Curriculum Press, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.