Llongwr o Ros-lan
Subtitle: hanes mordeithiau rhwng 1911 a 1918
By: John Jones Williams.
Edition: Arg. cyntaf.
Publisher: Cyhoeddiadau Mei
Published: 1983
Place of publication: Penygroes, Caernarfon, Gwynedd
Language: wel
Number of pages: 120
Subjects: Merchant ships -- Wales -- History -- 20th century.; Merchant ships -- Great Britain -- History -- 20th century.; Navigation -- Wales -- History -- 20th century.; Wales -- Commerce.