• Barton, Allen H. Communities in Disaster: A Sociological Analysis of Collective Stress Situations, Doubleday, 1969.
• Bankoff, Greg, Georg Frerks, Dorothea Hilhorst. Mapping Vulnerability: Disasters, Development and People, Routledge, 2004.
• Alexander, David. Principles of Emergency planning and Management, Oxford University Press, 2002.
• Alison Booth; Kelly J. Mays. "Glossary: P". LitWeb, the Norton Introduction to Literature Studyspace,2014.
• Davies, Marion Wynne, ed. (1990), The Bloomsbury Guide to English Literature, New York: Prentice Hall.
• Drabble, Margaret, ed. (1996), The Oxford Companion to English Literature, Oxford: Oxford University Press.
• Finnegan, Ruth "How Oral Is Oral Literature?". Bulletin of the School of Oriental and African Studies,1974.
• Fulk, RD; Cain, Christopher M A History of Old English Literature, Malden: Blackwell. 2003.
• Kiernan, Kevin Beowulf and the Beowulf Manuscript, Ann Arbor, MI: University of Michigan,1996.
• Orchard, Andy A Critical Companion to Beowulf, Cambridge: DS Brewer,2003.
• Robinson, Fred C The Cambridge Companion to Old English Literature, Cambridge: Cambridge University Press,2001.
• Susanna M. Hoffman, Susanna M. & Anthony Oliver-Smith, authors & editors. Catastrophe and Culture: The Anthropology of Disaster, School of American Research Press, 2002.