Further Reading
Adinolfi, Federico, and Joan Taylor. "John the Baptist - Biblical Studies - Oxford Bibliographies - Obo." John the Baptist. June 30, 2014. Accessed April 13, 2016. doi:9780195393361-0135.
"Collections." Highlights. Accessed April 07, 2016. http://www.meadowsmuseumdallas.org/collections_acquisitions_Villabrille.htm.
Hurll, Estelle M. "P.16-17." In The Life of Our Lord in Art: With Some Account of the Artistic Treatment of the Life of St. John the Baptist. Boston: Houghton, Mifflin and Company, 1898.
Marjorie Trusted. "Villabrille y Ron, Juan Alonso." Grove Art Online. Oxford Art Online. Oxford University Press, accessed April 7, 2016,http://www.oxfordartonline.com.proxy.library.vanderbilt.edu/subscriber/article/grove/art/T089613.
Toman, Rolf, Achim Bednorz, and Catherine Bindman. "Baroque Sculpture in Spain." In Baroque: Architecture, Sculpture, Painting, 354-71. Cologne, Germany: Ullmann & Konemann/Tandem Verlag, 2007.