.de fo .lt 7.5i .po 0 .tl '\(ul''\(ul' .po .lt 'bp .. .wh -1v fo .tr ~ .ss 18 .ll 6i .lt 6i .po .75i .ps 10 .vs 12p .ft R .po 0 .lt 7.5i .tl '\(rn''\(rn' .lt 6i .po .75i .rs .sp |3i .ps 36 .ce \(bs .ps .sp |4i .ps 20 .ft B .ce 3 MM .sp 2v Memorandum Macros .sp 3v+.3i .ft .ps .ps 12 .vs 14p .ft I .ce 99 D. W. Smith .br J. R. Mashey .br E. C. Pariser (January 1980 Revision) .br N. W. Smith (April 1980 Revision) .ce 0 .ft .ps 10 .vs 12p .sp \n(.tu-6v .ce Bell Telephone Laboratories, Incorporated