National bibliographical services : their creation and operation /
by Knud Larsen.
- Paris : Unesco, 1953.
- x, 142 p. ; ill. ; 22 cm.
- Manuels bibliographiques de l'Unesco. 1 .
- Manuels bibliographiques de l'Unesco. 1. .
Includes bibliographical references (p. 124-136) and index.