activities of libraries 1 [vynechat] functions of libraries 1 [vynechat] funkcia knižníc 1 [vynechat] librarian readers 1 [vynechat] library administration 1 [vynechat] manažment knižníc 1 [vynechat] national libraries 1 [vynechat] národné knižnice 1 [vynechat] technical libraries 1 [vynechat] technické knižnice 1 [vynechat] činnosť knižníc 1 [vynechat] čitatelia 1 [vynechat]