Παραπομπή σε μορφή APA (7η εκδ.)

Ma, S., Racine, J. S., & Yang, L. (2015). Spline Regression in the Presence of Categorical Predictors. Journal of Applied Econometrics, 30(5), 705. https://doi.org/10.1002/jae.2410

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ma, Shujie, Jeffrey S. Racine, και Lijian Yang. "Spline Regression in the Presence of Categorical Predictors." Journal of Applied Econometrics 30, no. 5 (2015): 705. https://doi.org/10.1002/jae.2410.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ma, Shujie, et al. "Spline Regression in the Presence of Categorical Predictors." Journal of Applied Econometrics, vol. 30, no. 5, 2015, p. 705, https://doi.org/10.1002/jae.2410.