Gish, Oscar. Doctor migration and world health: the impact of the international demand for doctors on health services in developing countries. - London, Bell, 1971. - 151 pages 22 cm. Includes bibliographical references (pages 130-132). ISBN: 0713516119 9780713516111 LCCN: 72-304511 Subjects--Topical Terms: Emigration and immigration.Health Manpower. Subjects--Geographic Terms: Developing countries.