Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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