Document retrieval systems : factors affecting search time / K. Leon Montgomery.

by Montgomery, K. Leon 1933-
Published 1975

Use of library materials : the University of Pittsburgh study / Allen Kent, Jacob Cohen, K. Leon Montgomery, James G. Williams, Stephen Bulick, Roger R. Flynn, William N. Sabor, Una Mansfield.

by Kent, Allen, Cohen, Jacob, Montgomery, K. Leon 1933-, Williams, James G., Bulick, Stephen, 1948-, Flynn, Roger R., 1939-, Sabor, William N., Mansfield, Una
Published 1979