Penick, J. E., & Harris, R. L. (2005). Teaching with purpose: Closing the research-practice gap. NSTA Press.
Chicago-čujuhus (17. p.)Penick, John E., juo Robin Lee Harris. Teaching with Purpose: Closing the Research-practice Gap. Arlington, Va.: NSTA Press, 2005.
MLA-čujuhus (9. p.)Penick, John E., juo Robin Lee Harris. Teaching with Purpose: Closing the Research-practice Gap. NSTA Press, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.