Cita APA (7th ed.)
Borgmann, C. (2005). Social Security, Demographics, and Risk. Springer Berlin Heidelberg. https://doi.org/10.1007/b137963
Cita Chicago (17th ed.)
Borgmann, Christoph. Social Security, Demographics, and Risk. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. https://doi.org/10.1007/b137963.
Cita MLA (9th ed.)
Borgmann, Christoph. Social Security, Demographics, and Risk. Springer Berlin Heidelberg, 2005. https://doi.org/10.1007/b137963.
Atenció: Aquestes cites poden no estar 100% correctes.