Professional 's. (2019). The Environment Act 1986 E-13. Professional Book publishers.
芝加哥风格引文Professional 's. The Environment Act 1986 E-13. Delhi: Professional Book publishers, 2019.
MLA引文Professional 's. The Environment Act 1986 E-13. Professional Book publishers, 2019.
警告：这些引文格式不一定是100％准确.