TY - BOOK AU - Clements, Brian TI - Revision guide electrical installations : levels 2 and 3 : 2330 technical certificate and 2356 NVQ SN - 978 0 435 40257 0 U1 - 621 319076 CLE PY - 2008/// CY - Essex PB - Heinemann KW - ELECTRICAL INSTALLATIONS STUDY AND TEACHING HIGHER ER -