APA aipamena

Secko, D. (2005). Straight to the heart with Viagra. Canadian Medical Association.

Chicago Style aipamena

Secko, David. Straight to the Heart With Viagra. Canadian Medical Association, 2005.

MLA aipamena

Secko, David. Straight to the Heart With Viagra. Canadian Medical Association, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.