Duggal, K. (1996). Elements of environmental engineering (6th ed.). S.Chand & Co.
Style de citation ChicagoDuggal, K.N. Elements of Environmental Engineering. 6th ed. New Delhi: S.Chand & Co, 1996.
Style de citation MLADuggal, K.N. Elements of Environmental Engineering. 6th ed. S.Chand & Co, 1996.
Attention : ces citations peuvent ne pas être correctes à 100%.