Helpman, E. (1982). Variable returns to scale and international trade: Two generalizations. Foerder Institute for Economic Research, Faculty of Social Sciences, Tel-Aviv University.
Chicago-Zitierstil (17. Ausg.)Helpman, Elhanan. Variable Returns to Scale and International Trade: Two Generalizations. Ramat Aviv: Foerder Institute for Economic Research, Faculty of Social Sciences, Tel-Aviv University, 1982.
MLA-Zitierstil (9. Ausg.)Helpman, Elhanan. Variable Returns to Scale and International Trade: Two Generalizations. Foerder Institute for Economic Research, Faculty of Social Sciences, Tel-Aviv University, 1982.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.