"Url","Type","Title","Publisher Place","Publisher","Date","Authors","Volume","Language","Pages"
"http://www.biodiversitylibrary.org/page/32802829","Serial","Iberus : revista de la Sociedad Española de Malacología.","Barcelona :","La Sociedad,","1981","Sociedad Española de Malacología.       ","v. 1-4 (1981-84)","Spanish","Page 53"