(1921). HEALTH OF LONDON IN 1920.
Chicago Style aipamenaHEALTH OF LONDON IN 1920. 1921.
MLA aipamenaHEALTH OF LONDON IN 1920. 1921.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(1921). HEALTH OF LONDON IN 1920.
Chicago Style aipamenaHEALTH OF LONDON IN 1920. 1921.
MLA aipamenaHEALTH OF LONDON IN 1920. 1921.