APA aipamena

(2008). The Hobsons study UK guide 2008 edition (Ed.2008.). Hobsons.

Chicago Style aipamena

The Hobsons Study UK Guide 2008 Edition. Ed.2008. [s.l]: Hobsons, 2008.

MLA aipamena

The Hobsons Study UK Guide 2008 Edition. Ed.2008. Hobsons, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.