@book{ BUELA_SIERRA_MIRO_SANCHEZ,

author = { GUALBERTO BUELA CASAL and JUAN CARLOS SIERRA FREIRE and ELENA MIRO MORALES and ANA ISABEL SANCHEZ GOMEZ } ,

title = { EL NIÑO CON PROBLEMAS DE SUEÑO },

publisher = { PIRAMIDE S.A. },

address = { MADRID },

year = { 2004 },

}