00547nam a2200169Ia 4500003000900000008004100009040001600050080002800066110003300094245009400127260005000221300000900271500001900280650003900299650001800338650002100356IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a083.7:628.83:658.2bISI  aIndian Standards Institution 0aIndian standard code of practice for industrial ventilationcIndian Standards Institution  aNew DelhibIndian Standards Institutionc1965  a17p.  aIS 3103 : 1965  a Industrial Ventilation-Standards  a Standards   aNASA Thesaurus