Fleming, D. M. (2002). Winter Pressures. What are they? What can be done to prevent them? Prim Care Respir J.
Chicago Style aipamenaFleming, Douglas M. "Winter Pressures. What Are They? What Can Be Done to Prevent Them?" Prim Care Respir J 2002.
MLA aipamenaFleming, Douglas M. "Winter Pressures. What Are They? What Can Be Done to Prevent Them?" Prim Care Respir J 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.