APA (7th ed.) Zitazioa
Symposium on Biology of Sulphur Ciba Foundation & ebrary, Inc. (1980). Sulphur in biology. Excerpta Medica.
Chicago Style (17th ed.) Zitazioa
Symposium on Biology of Sulphur Ciba Foundation eta Inc ebrary. Sulphur in Biology. Amsterdam ; New York: Excerpta Medica, 1980.
MLA (9th ed.) Zitazioa
Symposium on Biology of Sulphur Ciba Foundation eta Inc ebrary. Sulphur in Biology. Excerpta Medica, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.