Παραπομπή APA

Sprent, P., & Smeeton, N. (2007). Applied nonparametric statistical methods (4th.). Chapman & Hall.

Παραπομπή Chicago Style

Sprent, Peter, και Nigel Smeeton. Applied Nonparametric Statistical Methods. 4th. London: Chapman & Hall, 2007.

Παραπομπή MLA

Sprent, Peter, και Nigel Smeeton. Applied Nonparametric Statistical Methods. 4th. Chapman & Hall, 2007.