material sobre apocalipsis http://www.apocalipsis.org/s-index.htm http://billhreeves.seekye1st.net/commentaries/apocalipsis/notas%20sobre%20apocalip sis,%20june%202004.pdf http://www.biblia2000.com.ar/apocalipsis/index.htm una exégesis de apocalipsis 17:1-11 http://www.monografias.com/trabajos5/apoc/apoc.shtml http://www.peterolsenart.com/intronew.htm http://catholic-resources.org/art/duncanlong.htm http://catholic-resources.org/courses/lmu/398apoc.htm http://www.e-sheep.com/apocamon/ http://www.hollywoodjesus.com/wolverton02.htm