TY - BOOK AU - Whelan, P M AU - I. Hodgson, M J II. Robinson, T. TI - Essential principles of physics SN - "0 7195 3382 1" AV - QC23 .W44 PY - 1978/// CY - Albemarle Street, London PB - John Murray KW - 1.Physics -study and teaching. KW - "Y" N1 - "Y" ER -