Dyfyniad APA

Pohanish, R. P., & Sittig, M. (2012). Sittig's handbook of toxic and hazardous chemicals and carcinogens (Sixth edition.). Elsevier/William Andrew.

Dyfyniad Arddull Chicago

Pohanish, Richard P., and Marshall Sittig. Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens. Sixth edition. Amsterdam: Elsevier/William Andrew, 2012.

Dyfyniad MLA

Pohanish, Richard P., and Marshall Sittig. Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens. Sixth edition. Elsevier/William Andrew, 2012.

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