INTERNATIONAL JOURNAL OF HUMAN-COMPUTER STUDIES
(formerly INTERNATIONAL JOURNAL OF MAN-MACHINE STUDIES)
Published monthly, since 1969. ISSN 1071-5819.
Subscriptions (including postage): Individuals 161 pounds UK, US $291;
Institutions 437 pounds UK, US $792. Canadian subscribers should add
GST at current rate of 7%. 
Publisher: Academic Press Ltd., 24-28 Oval Road, London, NW1 7DX, UK, phone
71-267-4466, fax 71-482-2293 or 71-485-4752, or email ac2@ib.rl.ac.uk. 
Send subscription orders to: Academic Press Ltd., Foots Cray, Sidcup,
Kent DA14 5HP, UK, phone 81-300-3322.
Air freight and mailing in the USA by Publications Expediting, Inc.,
200, Meacham Avenue, Elmont, NY 10003. 

USER MODELING AND USER-ADAPTED INTERACTION
4 issues per annum, ISSN 0924-1868,
$153.50 p.a. ($50 for individuals)
Kluwer Academic Publishers Group,
P.O. Box 322, 3300 AH Dordrecht,     
The Netherlands.

INTERNATIONAL JOURNAL OF HUMAN-COMPUTER SIMULATION
Editors: Gavriel Salvendy, Purdue; Michael J. Smith, Univ. of
Wisconsin; and Masamitsu Oshima, MISDC.
Subscriptions: individual $45, institutions $125.
Ablex Publishing Company, 355 Chestnut Street, Norwood, NJ 07648
201-767-8450, fax 201-767-6717