Cita APA (7a ed.)

Pérez Centeno, J. M., & Piá Aranguren, A. (2003). The medieval monastery of San Andrés de Astigarribia, Mutriku, Gipuzkoa (Basque Country, Spain). [s.n.].

Cita Chicago Style (17a ed.)

Pérez Centeno, Jesús Manuel, y Amagoia Piá Aranguren. The Medieval Monastery of San Andrés De Astigarribia, Mutriku, Gipuzkoa (Basque Country, Spain). [S.l.]: [s.n.], 2003.

Cita MLA (9a ed.)

Pérez Centeno, Jesús Manuel, y Amagoia Piá Aranguren. The Medieval Monastery of San Andrés De Astigarribia, Mutriku, Gipuzkoa (Basque Country, Spain). [s.n.], 2003.