PublicationACM SIGPLAN NoticesPaperModification to the APL/1130 system: Part 3ACM SIGPLAN NoticesDownload paperAbstractNo abstract available.Home↳ PublicationsDate01 Apr 1972PublicationACM SIGPLAN NoticesAuthorsJ.F. ClementiR.P. FletcherB.G. JamesIBM-affiliated at time of publicationResourcesPublicationShare