Rycroft, D. W. (1995). Prospects for the drainage of clay soils. Rome: Food and Agriculture Organization of the United Nations.
استشهاد بنمط شيكاغوRycroft, David W. Prospects for the Drainage of Clay Soils. Rome: Food and Agriculture Organization of the United Nations, 1995.
MLA استشهادRycroft, David W. Prospects for the Drainage of Clay Soils. Rome: Food and Agriculture Organization of the United Nations, 1995.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.