Citazione Stile APA (7a Edizione)

Penick, J. E., & Harris, R. L. (2005). Teaching with purpose: Closing the research-practice gap. NSTA Press.

Citazione stile Chigago Style (17a edizione)

Penick, John E., e Robin Lee Harris. Teaching with Purpose: Closing the Research-practice Gap. Arlington, Va.: NSTA Press, 2005.

Citatione MLA (9a ed.)

Penick, John E., e Robin Lee Harris. Teaching with Purpose: Closing the Research-practice Gap. NSTA Press, 2005.