Gregory, P. R. S. C. (1980). Comparative economic systems (5th.Ed.). Houghton Mifflin.
Stile di citazione ChicagoGregory, Paul R. Stuart,robert C. Comparative Economic Systems. 5th.Ed. Boston: Houghton Mifflin, 1980.
Citazione MLAGregory, Paul R. Stuart,robert C. Comparative Economic Systems. 5th.Ed. Houghton Mifflin, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.