APA-referens

(2013). Improving crop productivity in sustainable agriculture. Weinheim: Wiley-Blackwell.

Chicago-stil citat

Improving Crop Productivity in Sustainable Agriculture. Weinheim: Wiley-Blackwell, 2013.

MLA-referens

Improving Crop Productivity in Sustainable Agriculture. Weinheim: Wiley-Blackwell, 2013.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.