Foster, E. O., & Barañano Letamendía, K. M. d. (2005). Eduardo Chillida, Richard Long, Anthony Caro, Anish Kapoor: [four works ; volume one ; 1998-2005]. Ivorypress.
Čikaški stil citiranja (17. izdanje)Foster, Elena Ochoa, i Kosme María de Barañano Letamendía. Eduardo Chillida, Richard Long, Anthony Caro, Anish Kapoor: [four Works ; Volume One ; 1998-2005]. S.l.: Ivorypress, 2005.
MLA način citiranja (8. izdanje)Foster, Elena Ochoa, i Kosme María de Barañano Letamendía. Eduardo Chillida, Richard Long, Anthony Caro, Anish Kapoor: [four Works ; Volume One ; 1998-2005]. Ivorypress, 2005.
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