National Council of Allied Economic Research. (1966). Survey of hilly and backward areas of Punjab. s.n.
芝加哥风格引文National Council of Allied Economic Research. Survey of Hilly and Backward Areas of Punjab. New Delhi: s.n, 1966.
MLA引文National Council of Allied Economic Research. Survey of Hilly and Backward Areas of Punjab. s.n, 1966.
警告：这些引文格式不一定是100％准确.