APA (7th ed.) Zitazioa

Heldt, H., Piechulla, B., & Heldt, F. (2011). Plant biochemistry (4a. ed.). Elsevier.

Chicago Style (17th ed.) Zitazioa

Heldt, Hans-Walter, Birgit Piechulla, eta Fiona Heldt. Plant Biochemistry. 4a. ed. Londres: Elsevier, 2011.

MLA (9th ed.) Zitazioa

Heldt, Hans-Walter, et al. Plant Biochemistry. 4a. ed. Elsevier, 2011.