APA-referens

Payan Zelaya, F. A. (2005). Effects of Erythrina poeppigiana pruning residues on soil organic matter in organic coffee plantations.

Chicago-stil citat

Payan Zelaya, Fidel A. Effects of Erythrina Poeppigiana Pruning Residues On Soil Organic Matter in Organic Coffee Plantations. 2005.

MLA-referens

Payan Zelaya, Fidel A. Effects of Erythrina Poeppigiana Pruning Residues On Soil Organic Matter in Organic Coffee Plantations. 2005.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.