BIS. (1992). IS: HEXAGON HEAD BOLTS, SCREWS & NUTS OF PRODUCT GRADE C PART 2 IS: 1363-1992. BIS.
Chicago Style aipamenaBIS. IS: HEXAGON HEAD BOLTS, SCREWS & NUTS OF PRODUCT GRADE C PART 2 IS: 1363-1992. NEW DELHI: BIS, 1992.
MLA aipamenaBIS. IS: HEXAGON HEAD BOLTS, SCREWS & NUTS OF PRODUCT GRADE C PART 2 IS: 1363-1992. BIS, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.