Volume 12 (1973)

Regular Papers and Short Notes

No. 1 pp. 1–162 (Jan 5)
No. 2 pp. 163–326 (Feb 5)
No. 3 pp. 329–488 (Mar 5)
No. 4 pp. 489–628 (Apr 5)
No. 5 pp. 631–782 (May 5)
No. 6 pp. 783–955 (June 5)
No. 7 pp. 957–1117 (July 5)
No. 8 pp. 1119–1295 (Aug 5)
No. 9 pp. 1297–1473 (Sep 5)
No. 10 pp. 1475–1662 (Oct 5)
No. 11 pp. 1663–1831 (Nov 5)
No. 12 pp. 1833–1964 (Dec 5)