Citazione Stile APA (7a Edizione)

Powers, S. (2019). Global manure phosphorus, human population density, cropland extent, livestock density, and nation-level phosphorus fertilizer use (circa 2010). PANGAEA.

Citazione stile Chigago Style (17a edizione)

Powers, Stephen. Global Manure Phosphorus, Human Population Density, Cropland Extent, Livestock Density, and Nation-level Phosphorus Fertilizer Use (circa 2010). PANGAEA, 2019.

Citatione MLA (9a ed.)

Powers, Stephen. Global Manure Phosphorus, Human Population Density, Cropland Extent, Livestock Density, and Nation-level Phosphorus Fertilizer Use (circa 2010). PANGAEA, 2019.