@book{34707,
	author = {Instituto Nacional de Normalización (INN). and Chile. Servicio Nacional de Turismo (SERNATUR)},
	title = {Turismo aventura - Excursionismo o trekking - Requisitos = Adventure tourism - Trekking - Requirements /},
	publisher = {Instituto Nacional de Normalización (INN),},
	year = {2006.},
	address = {Santiago :}
}