Warming, D. E. (1998). Systematic botany. Shree.
Chicago Style (17th ed.) ZitazioaWarming, Dr. E. Systematic Botany. New Delhi: Shree, 1998.
MLA (9th ed.) ZitazioaWarming, Dr. E. Systematic Botany. Shree, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.