Gaya APA
(Ed.), W, J. (1990).
Social Market Economy: An Econommic System For Developing Countries (1 ( Pertama )).
Sankt Augustin:
Academia Verlag Richarz.
Gaya MLA
(Ed.), Winfried, Jung.
"Social Market Economy: An Econommic System For Developing Countries".
1 ( Pertama )
Sankt Augustin:
Academia Verlag Richarz,
1990.
Textbook.