Description
Item Description:Address: Purchase from: Supt. of Docs., U.S. Govt. Print. Off., Washington, D.C. 20402.
Issued with perforations.
Description based on: Apr. 19, 1979; title from cover.
Title from cover.
Description based on: Apr. 19, 1979.
Physical Description:volumes ; 26 cm.
Publication Frequency:Issued every 112 days
ISSN:0364-5282