Παραπομπή APA

Gessford, J. E. (1980). Modern information systems: Designed for decision support. Reading, Mass.: Addison-Wesley Pub. Co..

Παραπομπή Chicago Style

Gessford, John Evans. Modern Information Systems: Designed for Decision Support. Reading, Mass.: Addison-Wesley Pub. Co., 1980.

Παραπομπή MLA

Gessford, John Evans. Modern Information Systems: Designed for Decision Support. Reading, Mass.: Addison-Wesley Pub. Co., 1980.

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