APA
Gorsuch J. W., American Society for Testing and Materials & Symposium on Environmental Toxicology and Risk Assessment : Aquatic P. a. T. (1993). Environmental toxicology and risk assessment. Philadelphia, Pa: ASTM.
Chicago
Gorsuch Joseph W, American Society for Testing and Materials and Symposium on Environmental Toxicology and Risk Assessment : Aquatic Plant and Terrestrial. 1993. Environmental toxicology and risk assessment. Philadelphia, Pa: ASTM.
Harvard
Gorsuch J. W., American Society for Testing and Materials and Symposium on Environmental Toxicology and Risk Assessment : Aquatic P. a. T. (1993). Environmental toxicology and risk assessment. Philadelphia, Pa: ASTM.
MLA
Gorsuch Joseph W, American Society for Testing and Materials and Symposium on Environmental Toxicology and Risk Assessment : Aquatic Plant and Terrestrial. Environmental toxicology and risk assessment. Philadelphia, Pa: ASTM. 1993.