Cita APA (7a ed.)

Hedberg, E., & Ayers, S. (2015). The power of a paired t-test with a covariate. Social science research, 50, 277-291. doi:10.1016/j.ssresearch.2014.12.004

Cita Chicago Style (17a ed.)

Hedberg, E.C, y Stephanie Ayers. "The Power of a Paired T-test with a Covariate." Social Science Research 50 (2015): 277-291. https://doi.org/10.1016/j.ssresearch.2014.12.004.

Cita MLA (9a ed.)

Hedberg, E.C, y Stephanie Ayers. "The Power of a Paired T-test with a Covariate." Social Science Research, vol. 50, 2015, pp. 277-291, https://doi.org/10.1016/j.ssresearch.2014.12.004.