APA-referens

Blackshaw, R. E., & Upadhyaya, M. K. (2007). Non-chemical weed management: Principles, concepts and technology. CAB International.

Chicago-stil citat

Blackshaw, Robert E., och Mahesh K. Upadhyaya. Non-chemical Weed Management: Principles, Concepts and Technology. UK: CAB International, 2007.

MLA-referens

Blackshaw, Robert E., och Mahesh K. Upadhyaya. Non-chemical Weed Management: Principles, Concepts and Technology. CAB International, 2007.