Collelo, Thomas (editor) (1989) A Country Study: Angola Federal Research Division, Library of Congress, Washington, D.C., Appendix A, Table 2, Cabinda, Archived 2 March 1999
Collelo, Thomas (editor) (1989) A Country Study: Angola Federal Research Division, Library of Congress, Washington, D.C., Appendix A, Table 2, Cabinda, Archived 2 March 1999