APA aipamena

Belozerova, A. (2003). Paying for bmj.com: Nothing is for free. BMJ Publishing Group Ltd.

Chicago Style aipamena

Belozerova, Anna. Paying for Bmj.com: Nothing Is for Free. BMJ Publishing Group Ltd, 2003.

MLA aipamena

Belozerova, Anna. Paying for Bmj.com: Nothing Is for Free. BMJ Publishing Group Ltd, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.