APA
Indian standards institution, . (1981). Specification for fly ash for use as pozzolana and admixture,IS:3812-1981. New Delhi: Indian Standards Institution.
Chicago
Indian standards institution, . 1981. Specification for fly ash for use as pozzolana and admixture,IS:3812-1981. New Delhi: Indian Standards Institution.
Harvard
Indian standards institution, . (1981). Specification for fly ash for use as pozzolana and admixture,IS:3812-1981. New Delhi: Indian Standards Institution.
MLA
Indian standards institution, . Specification for fly ash for use as pozzolana and admixture,IS:3812-1981. New Delhi: Indian Standards Institution. 1981.
