@book{55005,
	author = {Ximénez de Embún y González Arnas, Joaquín.},
	title = {El pino piñonero en las llanuras castellanas},
	publisher = {Ministerio de Agricultura,},
	year = {1959},
	series = {Hojas divulgadoras},
	address = {Madrid :},
	note = {Fotocopia}
}