TY - GEN ED - SRI LANKA STANDARDS INSTITUTION TI - SLS 143 : 1993 : Code of practice for general principles of food hygiene (First revision) PY - 1993/// CY - Colombo PB - SLSI KW - a614.3 KW - SRI LANKA-STANDARDS KW - STANDARDS-SRI LANKA N1 - STD2346 ER -