^Breeds reported by Spain: Ass. Domestic Animal Diversity Information System of the Food and Agriculture Organization of the United Nations. Accessed July 2014.
^Breeds reported by Portugal: Ass. Domestic Animal Diversity Information System of the Food and Agriculture Organization of the United Nations. Accessed July 2014.
^Miguel Fernández Rodríguez, Mariano Gómez Fernández, Juan Vicente Delgado Bermejo, Silvia Adán Belmonte, Miguel Jiménez Cabras (eds.) (2009). Guía de campo de las razas autóctonas españolas (in Spanish). Madrid: Ministerio de Medio Ambiente y Medio Rural y Marino. ISBN9788449109461. p. 417–41.