Romberg, T. A., Fennema, E., & Carpenter, T. P. (1993). Integrating research on the graphical representation of functions. Lawrence Erlbaum.
Chicago Style (17th ed.) CitationRomberg, Thomas A., Elizabeth Fennema, and Thomas P. Carpenter. Integrating Research on the Graphical Representation of Functions. Hillsdale, New Jersey ;: Lawrence Erlbaum, 1993.
MLA (9th ed.) CitationRomberg, Thomas A., et al. Integrating Research on the Graphical Representation of Functions. Lawrence Erlbaum, 1993.
Warning: These citations may not always be 100% accurate.