APA (7th ed.) Zitazioa

Heldt, H., & Piechulla, B. (2005). Plant biochemistry (3rd ed.). Elsevier.

Chicago Style (17th ed.) Zitazioa

Heldt, Hans-Walter, eta Birgit Piechulla. Plant Biochemistry. 3rd ed. New Delhi: Elsevier, 2005.

MLA (9th ed.) Zitazioa

Heldt, Hans-Walter, eta Birgit Piechulla. Plant Biochemistry. 3rd ed. Elsevier, 2005.