Cita APA (7a ed.)

Fisher, G. H. (1971). Cost considerations in systems analysis. American Elsevier.

Cita Chicago Style (17a ed.)

Fisher, Gene Harvey. Cost Considerations in Systems Analysis. New York: American Elsevier, 1971.

Cita MLA (9a ed.)

Fisher, Gene Harvey. Cost Considerations in Systems Analysis. American Elsevier, 1971.