SINGH Y K. (2017). ENVIRONMENTAL SCIENCE. NEW AGE INTERNATIONAL PUBLISHERS.
芝加哥风格引文SINGH Y K. ENVIRONMENTAL SCIENCE. NEW AGE INTERNATIONAL PUBLISHERS, 2017.
MLA引文SINGH Y K. ENVIRONMENTAL SCIENCE. NEW AGE INTERNATIONAL PUBLISHERS, 2017.
警告：这些引文格式不一定是100％准确.