Bot, A. (2005). The importance of soil organic matter: Key to drought-resistant soil and sustained food and production. Rome: Food and Agirculture Organization of the United Nations.
استشهاد بنمط شيكاغوBot, Alexandra. The Importance of Soil Organic Matter: Key to Drought-resistant Soil and Sustained Food and Production. Rome: Food and Agirculture Organization of the United Nations, 2005.
MLA استشهادBot, Alexandra. The Importance of Soil Organic Matter: Key to Drought-resistant Soil and Sustained Food and Production. Rome: Food and Agirculture Organization of the United Nations, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.