Axnick, N. W., & Brown, W. J. (1961). Primary and secondary syphilis in the United States.
Chicago Style aipamenaAxnick, Norman W., and William J. Brown. Primary and Secondary Syphilis in the United States. 1961.
MLA aipamenaAxnick, Norman W., and William J. Brown. Primary and Secondary Syphilis in the United States. 1961.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.