ISI. (1984). IS: SPECIFICATION FOR FLAT GLASS OIL LEVEL GAUGES FOR OIL STORAGE TANKS IS : 6202-1971. ISI.
Citace podle Chicago (17th ed.)ISI. IS: SPECIFICATION FOR FLAT GLASS OIL LEVEL GAUGES FOR OIL STORAGE TANKS IS : 6202-1971. NEW DELHI: ISI, 1984.
Citace podle MLA (9th ed.)ISI. IS: SPECIFICATION FOR FLAT GLASS OIL LEVEL GAUGES FOR OIL STORAGE TANKS IS : 6202-1971. ISI, 1984.
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