Paap, P. (1993). Farmers or foresters: The use of tree in the sylvopastoral systems of the Atlantic Zone of Costa Rica.
シカゴスタイル引用形Paap, P.F. Farmers or Foresters: The Use of Tree in the Sylvopastoral Systems of the Atlantic Zone of Costa Rica. 1993.
MLA引用形式Paap, P.F. Farmers or Foresters: The Use of Tree in the Sylvopastoral Systems of the Atlantic Zone of Costa Rica. 1993.
警告: この引用は必ずしも正確ではありません.