Magzine Name :Pipeline And Gas Journal, International Pipeline & Gas Utility Operations, Design And Maintainance, Frequency :Monthly
      Volume No       Year       Issue       Month
       135        1994        12        DECEMBER
       135        1994        10        OCTOBER
       135        1994        08        AUGUST
       135        1994        07        JULY
       135        1994        05        MAY
       135        1994        03        MARCH
       220        1993        12        DECEMBER
       220        1993        10        OCTOBER
       220        1993        08        AUGUST
       220        1993        06        JUNE
       220        1993        03        MARCH