APA (7th ed.) Citation

Oxford Reference Online & Heilbron, J. L. (2003). The Oxford companion to the history of modern science. Oxford University Press. https://doi.org/10.1093/acref/9780195112290.001.0001

Chicago Style (17th ed.) Citation

Oxford Reference Online and J. L. Heilbron. The Oxford Companion to the History of Modern Science. [Oxford, England] ; [New York]: Oxford University Press, 2003. https://doi.org/10.1093/acref/9780195112290.001.0001.

MLA (9th ed.) Citation

Oxford Reference Online and J. L. Heilbron. The Oxford Companion to the History of Modern Science. Oxford University Press, 2003. https://doi.org/10.1093/acref/9780195112290.001.0001.