Nepal National Conservation Strategy Implementation Programme & International Union for Conservation of Nature and Natural Resources. (1991). Environmental pollution in Nepal: A review of studies. National Conservation Strategy Implementation Programme, National Planning Commission, HMG Nepal, in collaboration with IUCN.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nepal National Conservation Strategy Implementation Programme و International Union for Conservation of Nature and Natural Resources. Environmental Pollution in Nepal: A Review of Studies. Kathmandu, Nepal: National Conservation Strategy Implementation Programme, National Planning Commission, HMG Nepal, in collaboration with IUCN, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nepal National Conservation Strategy Implementation Programme و International Union for Conservation of Nature and Natural Resources. Environmental Pollution in Nepal: A Review of Studies. National Conservation Strategy Implementation Programme, National Planning Commission, HMG Nepal, in collaboration with IUCN, 1991.