APA aipamena

Heaton, T. G. (1940). Purpura Associated with Vaccination Against Smallpox.

Chicago Style aipamena

Heaton, T. G. Purpura Associated With Vaccination Against Smallpox. 1940.

MLA aipamena

Heaton, T. G. Purpura Associated With Vaccination Against Smallpox. 1940.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.