National Science Teachers Association. Environmental Inquiry Leadership Team, ebrary, Inc, Carroll, P., & Trautmann, N. M. (2001). Assessing toxic risk (Teacher ed.). NSTA Press.
Chicago-čujuhus (17. p.)National Science Teachers Association. Environmental Inquiry Leadership Team, Inc ebrary, Patricia Carroll, juo Nancy M. Trautmann. Assessing Toxic Risk. Teacher ed. Arlington, Va.: NSTA Press, 2001.
MLA-čujuhus (9. p.)National Science Teachers Association. Environmental Inquiry Leadership Team, et al. Assessing Toxic Risk. Teacher ed. NSTA Press, 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.