Global Interdependence Center, Group of Thirty, Wharton School, & Herring, R. (1986). Managing foreign exchange risk: Essays commissioned in honor of the centenary of the Wharton School, University of Pennsylvania. Cambridge University Press.

Global Interdependence Center, Group of Thirty, Wharton School, и Richard Herring. Managing Foreign Exchange Risk: Essays Commissioned in Honor of the Centenary of the Wharton School, University of Pennsylvania. Cambridge: Cambridge University Press, 1986.

Global Interdependence Center, et al. Managing Foreign Exchange Risk: Essays Commissioned in Honor of the Centenary of the Wharton School, University of Pennsylvania. Cambridge University Press, 1986.