Aslib directory of information sources in the United Kingdom : volume 1 social sciences, medicine and the humanities
edited by Ellen M. Codlin
Aslib, 1982
 Buku Referensi
Aslib directory of information sources in the United Kingdom : volume 2 social sciences, medicine and the humanities
edited by Ellen M. Codlin
Aslib, 1984
 Buku Referensi
Directory of operational computer applications in United Kingdom libraries and information units
edited by C.W.J. Wilson
Aslib, 1977
 Buku Referensi
Directory of information sources in Japan, 1986 / edited by Japan Special Libraries Association
Nichigai Associates, 1986
 Buku Referensi
Cassara, Ernestt
History of the United States of America: a guide to information sources
Gale Research Coompany, 1977
 Buku Teks