APA aipamena

Knoppers, B. M. (2014). Does policy grow on trees? BMC Med Ethics.

Chicago Style aipamena

Knoppers, Bartha M. "Does Policy Grow On Trees?" BMC Med Ethics 2014.

MLA aipamena

Knoppers, Bartha M. "Does Policy Grow On Trees?" BMC Med Ethics 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.