(1973). PL/I for business applications / [by] Leonard E. Edwards.
Cita Chicago (17th ed.)PL/I for Business Applications / [by] Leonard E. Edwards. 1973.
Cita MLA (9th ed.)PL/I for Business Applications / [by] Leonard E. Edwards. 1973.
Atenció: Aquestes cites poden no estar 100% correctes.