TY - BOOK AU - Bureau of Indian Standards TI - Guide for Manufacture of Hand Made Common Burnt Clay Building Bricks (IS : 2117 - 1991) Reaffirmed 1997 U1 - IS : 2117 - 1991 PY - 1991/// CY - New Delhi PB - Bureau of Indian Standards KW - Indian Standard - IT N1 - IS : 2117 - 1991 ER -