O'Boyle, N. M., Morley, C., & Hutchison, G. R. (2008). Pybel: A Python wrapper for the OpenBabel cheminformatics toolkit. BMC chemistry, 2(1), 5. https://doi.org/10.1186/1752-153X-2-5
Chicago Style (17th ed.) CitationO'Boyle, Noel M., Chris Morley, and Geoffrey R. Hutchison. "Pybel: A Python Wrapper for the OpenBabel Cheminformatics Toolkit." BMC Chemistry 2, no. 1 (2008): 5. https://doi.org/10.1186/1752-153X-2-5.
MLA (9th ed.) CitationO'Boyle, Noel M., et al. "Pybel: A Python Wrapper for the OpenBabel Cheminformatics Toolkit." BMC Chemistry, vol. 2, no. 1, 2008, p. 5, https://doi.org/10.1186/1752-153X-2-5.
Warning: These citations may not always be 100% accurate.