APA aipamena

Kukreja, R. C. (2007). Cardiovascular protection with sildenafil following chronic inhibition of nitric oxide synthase. Nature Publishing Group.

Chicago Style aipamena

Kukreja, R C. Cardiovascular Protection With Sildenafil Following Chronic Inhibition of Nitric Oxide Synthase. Nature Publishing Group, 2007.

MLA aipamena

Kukreja, R C. Cardiovascular Protection With Sildenafil Following Chronic Inhibition of Nitric Oxide Synthase. Nature Publishing Group, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.