APA-referens

(1989). Nutrient management for food crop production in tropical farming systems. Haren, The Netherlands: Institute for Soil Fertility.

Chicago-stil citat

Nutrient Management for Food Crop Production in Tropical Farming Systems. Haren, The Netherlands: Institute for Soil Fertility, 1989.

MLA-referens

Nutrient Management for Food Crop Production in Tropical Farming Systems. Haren, The Netherlands: Institute for Soil Fertility, 1989.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.