American National Standards Institute & Computer and Business Equipment Manufacturers Association. (1976). American national standard programming language PL/I. The Institute.
Citação do estilo Chicago (17ª ed.)American National Standards Institute e Computer and Business Equipment Manufacturers Association. American National Standard Programming Language PL/I. New York: The Institute, 1976.
Citação MLA (8ª ed.)American National Standards Institute e Computer and Business Equipment Manufacturers Association. American National Standard Programming Language PL/I. The Institute, 1976.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.