Gaya APA

Tim, . (1989). Economics : A Biannual Collection Of Recent German Contributions To The Field Of Economic Science Studies Vol.39 . : Institute For Scientific Co-Operation Tubingen.

Gaya MLA

Tim, . "Economics : A Biannual Collection Of Recent German Contributions To The Field Of Economic Science Studies Vol.39". : Institute For Scientific Co-Operation Tubingen, 1989. Buku Teks.