Research methods in librarianship : techniques and interpretation / Charles H. Busha, Stephen P. Harter. Busha, Charles H. Harter, Stephen P., joint author. Library science Research. Z669.7 .B87 020.72 BUR Includes bibliographies and index. New York : Academic Press, 1980. 1980. 1980 Text xii, 417 p. : http://www.loc.gov/catdir/description/els031/79008864.html http://www.loc.gov/catdir/toc/els031/79008864.html eng Library and information science Library and information science (New York, N.Y.)