Vyas, L., & Garg, R. (1989). Wetland Conservation. Environment community centre.
芝加哥风格引文Vyas, L.N, 与 R.K Garg. Wetland Conservation. Udaipur: Environment community centre, 1989.
MLA引文Vyas, L.N, 与 R.K Garg. Wetland Conservation. Environment community centre, 1989.
警告：这些引文格式不一定是100％准确.