Barbour, E. H. (1970). PL/I: A self-instructional manual. Macmillan.
Citación estilo ChicagoBarbour, Edna H. PL/I: A Self-instructional Manual. New York: Macmillan, 1970.
Cita MLABarbour, Edna H. PL/I: A Self-instructional Manual. Macmillan, 1970.
Warning: These citations may not always be 100% accurate.