Geoffrey Parker, The Little Ice Age, in Global Crisis: War, Climate Change, & Catastrophe in the Seventeenth Century, Yale University Press, 2013, pp. 3-25, ISBN978-0-300-20863-4.
(EN) William Burroughs, New Scientist, in New Scientist Careers Guide: The Employer Contacts Book for Scientists, Reed Business Information, 18 dicembre 1980, p. 768, ISSN 0262-4079 (WC · ACNP).
(EN) William Burroughs, New Scientist, in New Scientist Careers Guide: The Employer Contacts Book for Scientists, Reed Business Information, 18 dicembre 1980, p. 768, ISSN 0262-4079 (WC · ACNP).
Pittenger, Richard F. and Gagosian, Robert B. Global Warming Could Have a Chilling Effect on the Military.( Copia archiviata, su ndu.edu. URL consultato il 29 dicembre 2009 (archiviato dall'url originale il 9 gennaio 2009).)
(EN) William Burroughs, New Scientist, in New Scientist Careers Guide: The Employer Contacts Book for Scientists, Reed Business Information, 18 dicembre 1980, p. 768, ISSN 0262-4079 (WC · ACNP).