TY - BOOK AU - Thorn,Eric A. TI - Understanding copyright: a practical guide SN - 1870404033 : AV - Z 551 .T47 1989 U1 - 346.4104/82344.106482 20 PY - 1989/// CY - Tunbridge Wells, Kent, England PB - Jay Books KW - Copyright KW - Great Britain N1 - Includes bibliographical references (p. 126) and index ER -