LeoGrande, William M. (Inverno de 2015). «A Policy Long Past Its Expiration Date: US Economic Sanctions Against Cuba». Social Research. 82 (4): 939–966. ISSN0037-783X. JSTOR44282148
Nature, vol. 436, issue 7049 (July 2005)http://www.nature.com/nature/journal/v436/n7049/index.htmlSocialism in one country: Cuba's scientific community has made substantial progress in addressing social problems. Nature; vol. 436, issue 7049 (July 2005); p303.]
LeoGrande, William M. (Inverno de 2015). «A Policy Long Past Its Expiration Date: US Economic Sanctions Against Cuba». Social Research. 82 (4): 939–966. ISSN0037-783X. JSTOR44282148
