National Council of Applied Economic Research. (1965). Cost price structure of iron ore. s.n.
Dyfyniad Arddull ChicagoNational Council of Applied Economic Research. Cost Price Structure of Iron Ore. New Delhi: s.n, 1965.
Dyfyniad MLANational Council of Applied Economic Research. Cost Price Structure of Iron Ore. s.n, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.