Lal,Ram N. (1985). Systems of national accounts and material product balances. Allied.
Dyfyniad Arddull ChicagoLal,Ram N. Systems of National Accounts and Material Product Balances. New Delhi: Allied, 1985.
Dyfyniad MLALal,Ram N. Systems of National Accounts and Material Product Balances. Allied, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.