Paap, P. (1993). Farmers or foresters: The use of tree in the sylvopastoral systems of the Atlantic Zone of Costa Rica.
Παραπομπή Chicago StylePaap, P.F. Farmers or Foresters: The Use of Tree in the Sylvopastoral Systems of the Atlantic Zone of Costa Rica. 1993.
Παραπομπή MLAPaap, P.F. Farmers or Foresters: The Use of Tree in the Sylvopastoral Systems of the Atlantic Zone of Costa Rica. 1993.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.