Le Page, Wilbur R. Applied APL programming / Wilbur R. LePage. - Englewood Cliffs, N.J. : Prentice-Hall, c1978. - xi, 308 p. : ill. ; 28 cm. Includes index. ISBN: 0130400637 LCCN: 78006619 Subjects--Topical Terms: APL (Computer program language) LC Class. No.: QA76.73.A27 / L46 Dewey Class. No.: 001.6/424