Andy Tattersall. (2015). Altmetrics. Facet.
Chicago Style aipamenaAndy Tattersall. Altmetrics. Facet, 2015.
MLA aipamenaAndy Tattersall. Altmetrics. Facet, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena