APA aipamena

Kettle, E. H. (1932). Observations ON THE PNEUMONOCONIOSES.

Chicago Style aipamena

Kettle, E. H. Observations ON THE PNEUMONOCONIOSES. 1932.

MLA aipamena

Kettle, E. H. Observations ON THE PNEUMONOCONIOSES. 1932.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.