Syers, J. (2008). Efficiency of soil and fertilizer phosphorus use: Reconciling changing concepts of soil phosphorus behaviour with agronomic information. Rome: Food and Agriculture Organization of the United Nations.
استشهاد بنمط شيكاغوSyers, J.K. Efficiency of Soil and Fertilizer Phosphorus Use: Reconciling Changing Concepts of Soil Phosphorus Behaviour With Agronomic Information. Rome: Food and Agriculture Organization of the United Nations, 2008.
MLA استشهادSyers, J.K. Efficiency of Soil and Fertilizer Phosphorus Use: Reconciling Changing Concepts of Soil Phosphorus Behaviour With Agronomic Information. Rome: Food and Agriculture Organization of the United Nations, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.