Ram, L. P. T. Environmental Health and Hyggiene (Ed.2 rev.).
Chicago Edition CitationRam, Lily Pritam Telu. Environmental Health and Hyggiene. Ed.2 rev. New Delhi, Vikas Publishing House Pvt Ltd.
MLA引文Ram, Lily Pritam Telu. Environmental Health and Hyggiene. Ed.2 rev.
警告：这些引文格式不一定是100％准确.