The electronic library : bibliographic data bases, 1978-79 / by Roger Christian.

by Christian, Roger W., 1928-2019
Published 1978

Librarians and online services / by Pauline Atherton and Roger W. Christian.

by Cochrane, Pauline A. (Pauline Atherton), 1929-2024, Christian, Roger W., 1928-2019
Published 1977