Gaya APA

Gałecki, A., Burzykowski, T. (2013). Linear mixed-effects models using R : a step by step approach (1). New York: Springer.

Gaya MLA

Gałecki, Andrzej., Burzykowski, Tomasz. "Linear mixed-effects models using R : a step by step approach". 1 New York: Springer, 2013. Electronic Resource.