TY - BOOK AU - Bureau of Indian Standards TI - General Requirements for Vibrators for Mass Concreting, Immersion Type (IS : 12468 - 1988) U1 - IS : 12468 - 1988 PY - 1989/// CY - New Delhi PB - Bureau of Indian Standards KW - Indian Standard - IT N1 - IS : 12468 - 1988 ER -