@book{104739,
	author = {Costa Rica. Ministerio de Agricultura y Ganadería.},
	title = {Agronomia costarricence /},
	publisher = {Universidad de Costa Rica,},
	year = {1977.},
	address = {San Jose de Costa Rica :},
	note = {Inicia en 1977con el vol. 1, no. 1}
}