一般注記Biennial
Dates of publication and/or sequential designation: Ceased with 1993 issue
Description based on: Jan. 1981; title from cover
Kept up-to-date by supplements
Vols. for <1987>-1993 lack chronological designation
Physical description for original version: v. ; 27 cm
原資料等に関する注記原資料の出版事項: [Washington, D.C.] : The Administration : [For sale by the Supt. of Docs., U.S. G.P.O
Continued by: List of materials acceptable for use on telecommunications systems of RUS borrowers
SUPTDOC番号: A 68.6/2: 991
GPO管理番号: 0116-A-03