Rev. ed. of: Area handbook for Chad / Harold D. Nelson ... [et al.]. 1972.
"Research completed December 1988."
Bibliography
Historical setting / John L. Collier -- The society and its environment / Dennis D. Cordell -- The economy / Peter D. Coats-- Government and politics / Rita M. Byrnes -- National security; Appendix B. Principal armed factions, 1975-87 / Jean R. Tartter.