Παραπομπή APA

Hao, L. (2007). Quantile regression. Sage publications.

Παραπομπή Chicago Style

Hao, Lingxin. Quantile Regression. London: Sage publications, 2007.

Παραπομπή MLA

Hao, Lingxin. Quantile Regression. Sage publications, 2007.