Kapp, G. B., & Beer, J. (1995). Introduction of timber trees in agroforestry systems in Talamanca, Costa Rica and Bocas del Toro, Panamá.
Dyfyniad Arddull ChicagoKapp, Gerald B., y John Beer. Introduction of Timber Trees in Agroforestry Systems in Talamanca, Costa Rica and Bocas Del Toro, Panamá. 1995.
Dyfyniad MLAKapp, Gerald B., y John Beer. Introduction of Timber Trees in Agroforestry Systems in Talamanca, Costa Rica and Bocas Del Toro, Panamá. 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.