Cita APA

Charles Philip Lecht. (1968). The programmer's PL/1: A complete reference. New York: McGraw-Hill.

Citación estilo Chicago

Charles Philip Lecht. The Programmer's PL/1: A Complete Reference. New York: McGraw-Hill, 1968.

Cita MLA

Charles Philip Lecht. The Programmer's PL/1: A Complete Reference. New York: McGraw-Hill, 1968.