International Software Database Corporation & Elsevier (Amsterdam). (1987). The Software catalog: Science and engineering (Fourth edition.). Elsevier.
Citazione stile Chigago Style (17a edizione)International Software Database Corporation e Elsevier (Amsterdam). The Software Catalog: Science and Engineering. Fourth edition. New York [i pozostałe]: Elsevier, 1987.
Citatione MLA (9a ed.)International Software Database Corporation e Elsevier (Amsterdam). The Software Catalog: Science and Engineering. Fourth edition. Elsevier, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.