SpringerLink (Online service), Kowalczyk, T., Pleszczynska, E., & Ruland, F. (2004). Grade Models and Methods for Data Analysis: With Applications for the Analysis of Data Populations (1st ed. 2004.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/978-3-540-39928-5
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Teresa Kowalczyk, Elzbieta Pleszczynska, και Frederick Ruland. Grade Models and Methods for Data Analysis: With Applications for the Analysis of Data Populations. 1st ed. 2004. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2004. https://doi.org/10.1007/978-3-540-39928-5.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Grade Models and Methods for Data Analysis: With Applications for the Analysis of Data Populations. 1st ed. 2004. Springer Berlin Heidelberg : Imprint: Springer, 2004. https://doi.org/10.1007/978-3-540-39928-5.
