Títulos similares: 78 [i.e. Seventy-Eight] Ayer Directory of Publications.
- The Environment Encyclopedia and Directory : 2005 /
- The European Union Encyclopedia and Directory 2004 / Ed. de J. Love, J. O'Brien.
- Ulrich's international periodicals directory : a classified guide to current periodicals, foreign and domestic.
- 1978 [i.e. Nineteen Seventy-Eight] Yearbook of Science and the Future /
- International Organizations : A Dictionary and Directory /
- The International Foundation Directory /