TY - BOOK AU - Singer,Peter TI - A Companion to ethics SN - 0631187855 (paperback) AV - BJ1012 .C62 1991 U1 - 170 20 PY - 1991/// CY - Oxford, UK, Cambridge, Mass., USA PB - Blackwell Publishers KW - Ethics KW - Social ethics N1 - Includes bibliographical references and index ER -