APA (7th ed.) Citation

Hjerppe, R. (1974). Experiences of an Interactive Retrieval System--ESRO/RECON.

Chicago Style (17th ed.) Citation

Hjerppe, Roland. Experiences of an Interactive Retrieval System--ESRO/RECON. 1974.

MLA (9th ed.) Citation

Hjerppe, Roland. Experiences of an Interactive Retrieval System--ESRO/RECON. 1974.

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