joswig, h. (1970). the financial system of the g. d. r. the institute of national planning.
Chicago-referens (17:e uppl.)joswig, heinz. The Financial System of the G. D. R. cairo: the institute of national planning, 1970.
MLA-referens (9:e uppl.)joswig, heinz. The Financial System of the G. D. R. the institute of national planning, 1970.