Gaya APA

Tim, . (1990). Economics : A Biannual Collection Of Recent German Contributions To The Field Of Economic Science Studies Vol.41 . : 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.41". : Institute For Scientific Co-Operation Tubingen, 1990. Buku Teks.