Spencer, D. E. .. (1990). Study guide Parkin economics. Reading, Massachusetts: Addison-Wesley.
Style de citation ChicagoSpencer, David E. Study Guide Parkin Economics. Reading, Massachusetts: Addison-Wesley, 1990.
Style de citation MLASpencer, David E. Study Guide Parkin Economics. Reading, Massachusetts: Addison-Wesley, 1990.
Attention : ces citations peuvent ne pas être correctes à 100%.