APA (7th ed.) Citation

Romberg, T. A., Fennema, E., & Carpenter, T. P. (1993). Integrating research on the graphical representation of functions. Lawrence Erlbaum.

Chicago Style (17th ed.) Citation

Romberg, 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.) Citation

Romberg, Thomas A., et al. Integrating Research on the Graphical Representation of Functions. Lawrence Erlbaum, 1993.