National Science Teachers Association. Environmental Inquiry Leadership Team, ebrary, Inc, & Trautmann, N. M. (2001). Assessing toxic risk (Student ed.). NSTA Press.
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Chicago-čujuhus (17. p.)
National Science Teachers Association. Environmental Inquiry Leadership Team, Inc ebrary, juo Nancy M. Trautmann. Assessing Toxic Risk. Student ed. Arlington, Va.: NSTA Press, 2001.
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MLA-čujuhus (9. p.)
National Science Teachers Association. Environmental Inquiry Leadership Team, et al. Assessing Toxic Risk. Student ed. NSTA Press, 2001.
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