APA (7th ed.) Citation

Shutler, P. M. E., Martinez, J. C., & Springham, S. V. (2007). Free Volume of the Hard Spheres Gas. European Journal of Physics, 28(3), 615. https://doi.org/10.1088/0143-0807/28/3/023

Chicago Style (17th ed.) Citation

Shutler, P. M. E., J. C. Martinez, and S. V. Springham. "Free Volume of the Hard Spheres Gas." European Journal of Physics 28, no. 3 (2007): 615. https://doi.org/10.1088/0143-0807/28/3/023.

MLA (9th ed.) Citation

Shutler, P. M. E., et al. "Free Volume of the Hard Spheres Gas." European Journal of Physics, vol. 28, no. 3, 2007, p. 615, https://doi.org/10.1088/0143-0807/28/3/023.