Too many, too long : Sudan's twenty-year refugee dilemma / John R. Rogge. Rogge, John. Refugees Sudan. HV640.5.S9 R65 1985 362.8709624 ROT Includes index. Bibliography: p. 185-190. Totowa : Rowman & Allanheld, 1985. 1985. 1985 Text xvii, 195 p., [16] p. of plates : eng Sudan.