APA aipamena

heslop, A., & International, H. (2013). Ageing and Development.

Chicago Style aipamena

heslop, Amanda, and HelpAge International. Ageing and Development. 2013.

MLA aipamena

heslop, Amanda, and HelpAge International. Ageing and Development. 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.