La Cartuja de El Paular (with numerous colour and black and white photographs by Francisco Zubillaga)
La Cartuja de El Paular (with numerous colour and black and white photographs by Francisco Zubillaga)
Gomez Ildefonso M., Hogg James , La Cartuja de El Paular (with numerous colour and black and white photographs by Francisco Zubillaga), Salzburg, Universität Salzburg, Institut für Anglistik und Amerikanistik, 1982.