Description
Published:Began with PES 1 (Jan. 19837); ceased with PES-308 (Dec. 1980).
Item Description:Cover title.
Description based on: PES-301 (Mar. 1979).
Previously classed: A 93.20:
Physical Description:volumes ; 26 cm.
Publication Frequency:Quarterly
ISSN:0032-5708
0277-0814