National Council of Applied Economic Research. (1965). Cost price structure of iron ore. s.n.
芝加哥风格引文National Council of Applied Economic Research. Cost Price Structure of Iron Ore. New Delhi: s.n, 1965.
MLA引文National Council of Applied Economic Research. Cost Price Structure of Iron Ore. s.n, 1965.
警告：这些引文格式不一定是100％准确.