Kyle, Barbara.
The Universal Decimal Classification: present position and future developments / by Barbara Kyle and B. C. Vickery. - Paris : UNESCO, 1961 - 34 p. : 23 cm.
Classification, Decimal.
025.4 / KYU
The Universal Decimal Classification: present position and future developments / by Barbara Kyle and B. C. Vickery. - Paris : UNESCO, 1961 - 34 p. : 23 cm.
Classification, Decimal.
025.4 / KYU