Cita APA (7a ed.)

Twenge, J. M., Bushman, B. J., Campbell, W. K., Foster, J. D., & Konrath, S. (2008). Further evidence of an increase in narcissism among college students. Journal of personality, 76(4), 919-928. doi:10.1111/j.1467-6494.2008.00509.x

Cita Chicago Style (17a ed.)

Twenge, Jean M., Brad J. Bushman, William Keith Campbell, Joshua D. Foster, y Sara Konrath. "Further Evidence of an Increase in Narcissism Among College Students." Journal of Personality 76, no. 4 (2008): 919-928. https://doi.org/10.1111/j.1467-6494.2008.00509.x.

Cita MLA (9a ed.)

Twenge, Jean M., et al. "Further Evidence of an Increase in Narcissism Among College Students." Journal of Personality, vol. 76, no. 4, 2008, pp. 919-928, https://doi.org/10.1111/j.1467-6494.2008.00509.x.