APA (7th ed.) Citation

(1971). The SMART retrieval system ; experiments in automatic document processing.

Chicago Style (17th ed.) Citation

The SMART Retrieval System ; Experiments in Automatic Document Processing. 1971.

MLA (9th ed.) Citation

The SMART Retrieval System ; Experiments in Automatic Document Processing. 1971.

Warning: These citations may not always be 100% accurate.