Bergmann, R., & Bergmann, R. (2002). Experience Management: Foundations, Development Methodology, and Internet-Based Applications (1st ed. 2002.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-45759-3
Παραπομπή σε μορφή Chicago (17η εκδ.)Bergmann, Ralph, και Ralph Bergmann. Experience Management: Foundations, Development Methodology, and Internet-Based Applications. 1st ed. 2002. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2002. https://doi.org/10.1007/3-540-45759-3.
Παραπομπή σε μορφή MLA (8th εκδ.)Bergmann, Ralph, και Ralph Bergmann. Experience Management: Foundations, Development Methodology, and Internet-Based Applications. 1st ed. 2002. Springer Berlin Heidelberg : Imprint: Springer, 2002. https://doi.org/10.1007/3-540-45759-3.
