Web Directory

» Internet Archive: PL/I structured programming
   3rd ed. Joan Kirkby Hughes(1978). Read online or download. Introductory text on PL/I.
   http://www.archive.org/details/plistructuredprogrammingdctestscribe3

» Internet Archive: The PL/I programming language
   Paul Abrahams, Paul (1978). Read online or download. Introductory text on PL/I.
   http://www.archive.org/details/pliprogrammingla00abra

» Introduction to PL/I, Algorithms, and Structured Programming
   3rd ed. Robin Vowels(1997). Author's page including description and table of contents. Introductory book on PL/I including features of the new IBM compilers.
   http://members.dodo.com.au/~robin51/pli-cont.htm

» The New PL/I ... for PC, Workstation and Mainframe
   Eberhard Sturm (2009). Limited preview at Google Books including table of contents and a selection of pages. Introductory book on PL/I including features of the new IBM compilers.
   http://books.google.com/books?id=Vfp5Glbr7cwC&printsec=frontcover&dq=vieweg+eberhard+sturm&source=bl&ots=toAPq0lPlv&sig=wx7RttVe88l_RQGP6SCqrDOD-Ds&hl=en&ei=1VRwTKyhJcGC8gbKqKmmDQ&sa=X&oi=book_result&ct=result&r