Geographic Area Codes
Special cases for Russia
When assigning GAC's for time periods that straddle the 1991 period, many times you must double the GAC.
Example
043 e-ur---‡ae-ur-ru
100 1 Rubenstein, Joshua.
245 10 Tangled loyalties :‡bthe life and times of Ilya Ehrenburg /‡cJoshua Rubenstein.
...
600 10 Erenburg, Ilia,‡d1891-1967.
650 0 Authors, Russian‡y20th century‡xBiography.
650 0 Journalists‡zSoviet Union‡xBiography.
650 0 Communism and culture‡zSoviet Union.
651 0 Soviet Union‡xIntellectual life‡y1917-1970.
DCLC9536588-B