Uba:when and why was the embargo established, and why should or shoulnt the United States end it?

this is a research paper, college level. must obtain information from at least 5 different sources, one of which must be from an appropriate periodical or academic journal, and may NOT INCLUDE ANYTHING FROM AN ENCYCLOPEDIA(ESPECIALLY WIKIPEDIA).Must provide a quote or quotes FROM EACH of your sources;provide proper MLA annotation within the body and a separate WORKS CITED PAGE, as per the MLA examples in A Writers Referenceof Hacker, Diana. Must provide a proper thesis statement and provide ample examples and evidence in support.
4 pages of essay and the 5th one will be the Works cited.