Barker, D. J. (1991). An economic analysis of farming coffee and trees at Turrialba, Costa Rica: Comparing small farms with poro (Erythrina poeppigiana) only to those with both laurel (Cordia alliodora) and poro.
Chicago Stili AlıntıBarker, David J. An Economic Analysis of Farming Coffee and Trees At Turrialba, Costa Rica: Comparing Small Farms With Poro (Erythrina Poeppigiana) Only to Those With Both Laurel (Cordia Alliodora) and Poro. 1991.
MLA AlıntıBarker, David J. An Economic Analysis of Farming Coffee and Trees At Turrialba, Costa Rica: Comparing Small Farms With Poro (Erythrina Poeppigiana) Only to Those With Both Laurel (Cordia Alliodora) and Poro. 1991.
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