Patents throughout the world /
edited by Elizabeth Hanellin.
- 4th edition.
- various paging ; 25 cm.
Loose-leaf for updating. Editors: Anne Marie Greene (1978-1986); Alan J. Jacobs (<1990?-1998? >). Updated to 4th ed. Publisher: Trade Activities, inc. (1978- ). Description based on: t.p., rel. #59, 9/98.