@Book{BDG20130007571, title = "Manual de apicultura : escrito expresamente para los agricultores gallegos", author = "Pimentel M\'{e}ndez, Ram\'{o}n", publisher = "Vigo : [s.n.]", editor = "[s.n.]", URL = "http://biblioteca.galiciana.gal/es/consulta/registro.do?id=8154", year = "1893", }