Germain, Clarence B. PL/I for the IBM 360 / by Clarence B. Germain - Englewood Cliffs, N.J. : Prentice-Hall, 1972 - vii, 283 p. : illus. ; 28 cm. ISBN: 0136765858 LCCN: 71-174633 Subjects--Topical Terms: PL/I (Computer program language)IBM 360 (Computer)--Programming