Indian standards institution . ISI. (1975). Specification for hollow clay tiles for floors and roofs,IS: 3951-1975. ISI.
استشهاد بنمط شيكاغوIndian standards institution . ISI. Specification for Hollow Clay Tiles for Floors and Roofs,IS: 3951-1975. : ISI, 1975.
MLA استشهادIndian standards institution . ISI. Specification for Hollow Clay Tiles for Floors and Roofs,IS: 3951-1975. ISI, 1975.