@book{ ZAFRA_PÉREZ_LOPEZ_Romero_Arce-Gisbert_Labatut-,

author = { JOSÉ LUIS ZAFRA GÓMEZ and MARÍA DEL CARMEN PÉREZ LÓPEZ and MARIA VICTORIA LOPEZ PEREZ and Esteban Romero Frías and Miguel Arce-Gisbert and Gregorio Labatut- } ,

title = { CAMBIOS EN EL PGC },

publisher = { Lid Editorial },

number = { 1 },

year = { 2008 },

isbn = { 84-8356-055-0 },

}