Bader. (1970). The Integration of The State Insurance Into The Economic System of The German Democratic Republic. The Institute of National Planning.
Cita Chicago (17th ed.)Bader. The Integration of The State Insurance Into The Economic System of The German Democratic Republic. Cairo: The Institute of National Planning, 1970.
Cita MLA (9th ed.)Bader. The Integration of The State Insurance Into The Economic System of The German Democratic Republic. The Institute of National Planning, 1970.