APA-viite (7. p.)

Blum, U. (2011). Plant-plant allelopathic interactions: Phenolic acids, cover crops and weed emergence. Springer.

Chicago-viite (17. p.)

Blum, Udo. Plant-plant Allelopathic Interactions: Phenolic Acids, Cover Crops and Weed Emergence. Dordrecht, New York: Springer, 2011.

MLA-viite (9. p.)

Blum, Udo. Plant-plant Allelopathic Interactions: Phenolic Acids, Cover Crops and Weed Emergence. Springer, 2011.