Bader. (1970). The Integration of The State Insurance Into The Economic System of The German Democratic Republic. The Institute of National Planning.
Dyfyniad Arddull ChicagoBader. The Integration of The State Insurance Into The Economic System of The German Democratic Republic. Cairo: The Institute of National Planning, 1970.
Dyfyniad MLABader. The Integration of The State Insurance Into The Economic System of The German Democratic Republic. The Institute of National Planning, 1970.