Back, P. (1996). The Illustrated herbal. Chancellor.
Chicago Style (17th ed.) ZitazioaBack, Philippa. The Illustrated Herbal. London: Chancellor, 1996.
MLA (9th ed.) ZitazioaBack, Philippa. The Illustrated Herbal. Chancellor, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.