Food and Agriculture Organization of the United Nations. (2003). Soil and terrain database for Southern Africa. Rome: Food and Agriculture Organization of the United Nations.
استشهاد بنمط شيكاغوFood and Agriculture Organization of the United Nations. Soil and Terrain Database for Southern Africa. Rome: Food and Agriculture Organization of the United Nations, 2003.
MLA استشهادFood and Agriculture Organization of the United Nations. Soil and Terrain Database for Southern Africa. Rome: Food and Agriculture Organization of the United Nations, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.