Indian Standards Institution. (1970). Indian Standard: Specification for Rubber Sealing Rings for Gas Mains, Water Mains and Sewers. Indian Standards Institution.
Stile di citazione ChicagoIndian Standards Institution. Indian Standard: Specification for Rubber Sealing Rings for Gas Mains, Water Mains and Sewers. N.Delhi: Indian Standards Institution, 1970.
Citazione MLAIndian Standards Institution. Indian Standard: Specification for Rubber Sealing Rings for Gas Mains, Water Mains and Sewers. Indian Standards Institution, 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.