A comparison of three online information retrieval services
By: Harriet W. Zais
Publisher: Lawrence Berkeley Laboratory, University of California
Published: 1974
Place of publication: Berkeley
Language: eng
Number of pages: 37
Subjects: Information storage and retrieval systems; Science; Online data processing; Social sciences
Notes: "AEC contract no. W-7405-end-48; UCID-3656."

Photocopy. Arlington Va. : Computer Microfilm International Corporation, [1975?]. -- 28 cm.