National Conference on Indian Environment & Singh, P. (1992). Indian environment: Proceedings of National Conference organised by Institute of Environmental Sciences, "Chitrakut Gramoday Vishwavidyalay Chitrakut". Ashish Publishing.
芝加哥风格引文National Conference on Indian Environment 与 Parmod Singh. Indian Environment: Proceedings of National Conference Organised by Institute of Environmental Sciences, "Chitrakut Gramoday Vishwavidyalay Chitrakut". New Delhi: Ashish Publishing, 1992.
MLA引文National Conference on Indian Environment 与 Parmod Singh. Indian Environment: Proceedings of National Conference Organised by Institute of Environmental Sciences, "Chitrakut Gramoday Vishwavidyalay Chitrakut". Ashish Publishing, 1992.
警告：这些引文格式不一定是100％准确.