Arvind Kumar & Verma, M. (2009). Environmental pollution and health hazards. A P H Publishing Corporation.
Chicago-стиль цитированияArvind Kumar and M.C Verma. Environmental Pollution and Health Hazards. New Delhi: A P H Publishing Corporation, 2009.
MLA-цитированиеArvind Kumar and M.C Verma. Environmental Pollution and Health Hazards. A P H Publishing Corporation, 2009.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.