Regensburg Classification

library classification system

en-GB/ˈɹeɪɡənzbɜːɡ ˌklæsɪfɪˈkeɪʃən/
en-US/ˈɹeɪɡənsˌbuɹk ˌklæsəfəˈkeɪʃən/

الفئات:

library classification schemeshelf classification