Richards, I. S., & Bourgeois, M. (2014). Principles and practice of toxicology in public health (2nd ed.). Jones & Bartlett Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRichards, Ira S., और Marie Bourgeois. Principles and Practice of Toxicology in Public Health. 2nd ed. Sudbury, Mass.: Jones & Bartlett Learning, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRichards, Ira S., और Marie Bourgeois. Principles and Practice of Toxicology in Public Health. 2nd ed. Jones & Bartlett Learning, 2014.
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