F. Anscombe: Computing in statistical science through APL. Springer 1981. R. Bender/W. Helm/H. Unkelbach/T. Wolf: Wirtschaftsmathematik mit APL. Bibl. Inst. 1993, 240p. 3-411-03220-0. DM 36. Hanspeter Bieri/Felix Grimm: Datenstrukturen in Apl 2. Springer 1992, 340p. James Brown/Sandra Pakin/Raymond Polivka: Apl 2 at a glance. Prentice Hall 1988, 440p. $64. A. Buzin: Introduction to modern Apl. Vychislitel'nyi Tsentr Ran 1998, 185p. (Russian) Andreas Geyer-Schulz/Wolfgang Janko/Alfred Taudes: Modernes APL. Bibl. Inst. 1994, 400p. 3-411-03190-5. DM 48. 4466 Ulf Grenander: Mathematical experiments on the computer. Academic Press 1982. Kenneth Iverson: A programming language. Wiley 1962. Wolfgang Paul/Ju''rgen Sauermann: Parallelisierung aller Apl-Operationen. In Wegener 1996, 199-220. Clifford Reiter/William Jones: Apl with a mathematical accent. CRC 1990, 200p. $69. Norman Thomson/Raymond Polivka: APL2 in depth. Springer 1995, 260p. 3-540-94213-0. DM 97. Ingo Wegener (ed.): Highlights aus der Informatik. Springer 1996. Jim Weigang: APL notes. 200p. $38. Order: jimw@chilton.com. 22397 ZZ: Dyalog language reference. Internet ca. 2010, 730p.