Paap, P. (1993). Farmers or foresters: The use of tree in the sylvopastoral systems of the Atlantic Zone of Costa Rica.
استشهاد بنمط شيكاغوPaap, P.F. Farmers or Foresters: The Use of Tree in the Sylvopastoral Systems of the Atlantic Zone of Costa Rica. 1993.
MLA استشهادPaap, P.F. Farmers or Foresters: The Use of Tree in the Sylvopastoral Systems of the Atlantic Zone of Costa Rica. 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.