APA (7th ed.) Citation

Ledford, H. (2011). Cancer theory faces doubts. Nature (London), 472(7343), 273. https://doi.org/10.1038/472273a

Chicago Style (17th ed.) Citation

Ledford, Heidi. "Cancer Theory Faces Doubts." Nature (London) 472, no. 7343 (2011): 273. https://doi.org/10.1038/472273a.

MLA (9th ed.) Citation

Ledford, Heidi. "Cancer Theory Faces Doubts." Nature (London), vol. 472, no. 7343, 2011, p. 273, https://doi.org/10.1038/472273a.