JD, H., MJ, L., & JR, E. (2014). Observations and sources of carbon and nitrogen isotope ratio variation of pentaerythritol tetranitrate (PETN). Forensic science international, 244, 152. https://doi.org/10.1016/j.forsciint.2014.08.036
Chicago Style (17th ed.) CitationJD, Howa, Lott MJ, and Ehleringer JR. "Observations and Sources of Carbon and Nitrogen Isotope Ratio Variation of Pentaerythritol Tetranitrate (PETN)." Forensic Science International 244 (2014): 152. https://doi.org/10.1016/j.forsciint.2014.08.036.
MLA (9th ed.) CitationJD, Howa, et al. "Observations and Sources of Carbon and Nitrogen Isotope Ratio Variation of Pentaerythritol Tetranitrate (PETN)." Forensic Science International, vol. 244, 2014, p. 152, https://doi.org/10.1016/j.forsciint.2014.08.036.