APA (7th ed.) Citation

Watterson, S. (2016). Academia: Gap widens for honorary PhDs. Nature (London), 537(7619), 167. https://doi.org/10.1038/537167d

Chicago Style (17th ed.) Citation

Watterson, Steven. "Academia: Gap Widens for Honorary PhDs." Nature (London) 537, no. 7619 (2016): 167. https://doi.org/10.1038/537167d.

MLA (9th ed.) Citation

Watterson, Steven. "Academia: Gap Widens for Honorary PhDs." Nature (London), vol. 537, no. 7619, 2016, p. 167, https://doi.org/10.1038/537167d.