BIS. (1992). IS: HEXAGON HEAD BOLTS, SCREWS & NUTS OF PRODUCT GRADE C PART 3 IS: 1363-1992. BIS.
Chicago-viite (17. p.)BIS. IS: HEXAGON HEAD BOLTS, SCREWS & NUTS OF PRODUCT GRADE C PART 3 IS: 1363-1992. NEW DELHI: BIS, 1992.
MLA-viite (9. p.)BIS. IS: HEXAGON HEAD BOLTS, SCREWS & NUTS OF PRODUCT GRADE C PART 3 IS: 1363-1992. BIS, 1992.
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