Kumar, H. D. (1997). Modern concepts of ecology (8th rev. ed.). Vikas Pub. House.
芝加哥风格引文Kumar, H. D. Modern Concepts of Ecology. 8th rev. ed. New Delhi: Vikas Pub. House, 1997.
MLA引文Kumar, H. D. Modern Concepts of Ecology. 8th rev. ed. Vikas Pub. House, 1997.
警告：这些引文格式不一定是100％准确.