Não informado. (1971). SIG/DA newsletter. Association for Computing Machinery.
Chicago-viite (17. p.)Não informado. SIG/DA Newsletter. New York: Association for Computing Machinery, 1971.
MLA-viite (8. p.)Não informado. SIG/DA Newsletter. Association for Computing Machinery, 1971.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.