Ble mae'r llyfr?
Subtitle: arweiniad i destunau yn y llyfrgell = Where's the book? : a guide to subjects in the library.
Contributors: Gwynedd Library Service.
Edition: [2nd ed.]
Publisher: Gwasanaeth Llyfrgell Gwynedd = Gwynedd Library Service.
Place of publication: Caernarfon
Language: wel
Number of pages: 166
Notes: English text.