Hartland, P. C. (1950). Balance of interregional payments of New England. Brown University.
Cita Chicago Style (17a ed.)Hartland, Penelope C. Balance of Interregional Payments of New England. Providence: Brown University, 1950.
Cita MLA (9a ed.)Hartland, Penelope C. Balance of Interregional Payments of New England. Brown University, 1950.
Precaución: Estas citas no son 100% exactas.