Description
Published:Vol. 132, no. 2 (Apr. 1985)-v. 140, no. 6 (Dec. 1993).
Item Description:Title from cover.
Physical Description:9 volumes : illustrations ; 30 cm
Also issued by subscription via the World Wide Web.
Publication Frequency:Bimonthly
ISSN:0950-107X
0143-7097
1350-2417