Circulo Speleologico e Idrologico Friulano


          Italy 
		Mondo Sotteraneo 
					No.1			1970 
					No.1			1971 
          					No.1			1972/73 
          					No.1			1976 

          		New Series 
          			Vol.1		No.1	April		1977
			Vol.1		No.2	October	1977 
			Vol.2		No.2	October	1978