Singh , M. (1989). Operational efficiency of public enterprises. Pointer.
芝加哥风格引文Singh , Mohar. Operational Efficiency of Public Enterprises. Jaipur: Pointer, 1989.
MLA引文Singh , Mohar. Operational Efficiency of Public Enterprises. Pointer, 1989.
警告：这些引文格式不一定是100％准确.