Factor, C. J. B., & De Chavez, E. R. C. (2012). Toxicity of arsenic, aluminum, chromium and nickel to the embryos of the freshwater snail, Radix quadrasi von Möllendorff 1898. Philippine Journal of Science.
Chicago Style (17th ed.) CitationFactor, Catrine Jell B., and Emmanuel Ryan C. De Chavez. "Toxicity of Arsenic, Aluminum, Chromium and Nickel to the Embryos of the Freshwater Snail, Radix Quadrasi Von Möllendorff 1898." Philippine Journal of Science 2012.
MLA (9th ed.) CitationFactor, Catrine Jell B., and Emmanuel Ryan C. De Chavez. "Toxicity of Arsenic, Aluminum, Chromium and Nickel to the Embryos of the Freshwater Snail, Radix Quadrasi Von Möllendorff 1898." Philippine Journal of Science, 2012.
Warning: These citations may not always be 100% accurate.