Cita APA (7a ed.)

Penick, J., & Harris, R. (2005). Teaching With Purpose: Closing the Research-Practice Gap. National Science Teachers Association (NSTA).

Cita Chicago Style (17a ed.)

Penick, John, y Robin Harris. Teaching With Purpose: Closing the Research-Practice Gap. Arlington: National Science Teachers Association (NSTA), 2005.

Cita MLA (8a ed.)

Penick, John, y Robin Harris. Teaching With Purpose: Closing the Research-Practice Gap. National Science Teachers Association (NSTA), 2005.