Belgium and the Holy See from Gregory XVI to Pius IX (1831-1859)
  MLA
  Viaene, Vincent. Belgium and the Holy See From Gregory Xvi to Pius Ix (1831-1859). Leuven University Press, 2001.
  APA
  Viaene, V. (2001). Belgium and the Holy See from Gregory XVI to Pius IX (1831-1859). Leuven University Press.
  Chicago
  Viaene, Vincent Belgium and the Holy See From Gregory XVI to Pius IX (1831-1859). : Leuven University Press, 2001.