Christopher P Baker, The National Geographic Traveler: Costa Rica, National Geographic Society, U.S 2000, p32.
Mavis Hiltunen Biesanz, Richard Biesanz, Karen Zubris Biesanz, The Ticos: Culture and Social Change in Costa Rica, Lynne Rienner Publishers, USA, 1999
Beatrice Blake, Anne Becher, The New Key to Costa Rica, Ulysses Press, Berkeley, USA, 1994.
Charles A.S. Hall, ed. Quantifying Sustainable Development: The Future of Tropical Economies, Academic Press UK & USA, 2000.
Iván Molina & Steven Palmer, The History of Costa Rica, Editorial de la Universidad de Costa Rica, 1998
Jeffery M. Paige, Coffee and Power: Revolution and the Rise of Democracy in Central America, Harvard University Press, Cambridge, Massachusetts, 1997
Internet Resources:
Christopher Baker, History of Costa Rica, www.photo.net/cr/moon/history.html
John A. Peeler, Early Democratization in Latin America: Costa Rica in the Context of Chile and Uruguay, www1.utexas.edu/project/lasa95/peeler.html
Costa Rica: The Revolution of 1948, a Cause and Effect Analysis, http://historicaltextarchive.com/sections.php?op=viewarticle&artid=77
Geological History of Costa Rica, http://www.angelfire.com/bc/gonebirding/geoclime.html Costa Rica
Guanacaste’s Rich Past, www.costaricaoutdoors.com
Overview: History of Costa Rica, www.infocostarica.com/history/history.html
Republica de Costa Rica: National History, www.aeroflight.co.uk/americas/costa_rica/Costa-Rica-national-history.htm
Wikipedia
History of Costa Rica, http://en.wikipedia.org/wiki/Costa_Rica
Costa Rica Presidents, http://en.wikipedia.org/wiki/List_of_Presidents_of_Costa_Rica
Geological History, http://en.wikipedia.org/wiki/Isthmus_of_Panama
Subduction, http://en.wikipedia.org/wiki/Subduction

