National Science Teachers Association. Environmental Inquiry Leadership Team, ebrary, Inc, & Trautmann, N. M. (2001). Assessing toxic risk (Student ed.). NSTA Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)National Science Teachers Association. Environmental Inquiry Leadership Team, Inc ebrary, ба Nancy M. Trautmann. Assessing Toxic Risk. Student ed. Arlington, Va.: NSTA Press, 2001.
MLA -ийн эшлэл (9 дэх хэвлэлт)National Science Teachers Association. Environmental Inquiry Leadership Team, et al. Assessing Toxic Risk. Student ed. NSTA Press, 2001.
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