• Llyfrau Saesneg yn ôl ffurf‎ (1 Cat)
• Llyfrau Saesneg yn ôl genre‎ (2 Cat)
• Llyfrau Saesneg yn ôl gwlad yr awdur‎ (22 Cat)
• Llyfrau Saesneg yn ôl pwnc‎ (7 Cat)

^

• Llyfrau ffuglen Saesneg‎ (1 Cat)

A

• Astudiaethau academaidd Saesneg‎ (41 Tud)
• Astudiaethau llenyddol Saesneg‎ (176 Tud)

B

• Blodeugerddi Saesneg‎ (2 Cat, 6 Tud)
• Bywgraffiadau Cymreig‎ (343 Tud)
• Bywgraffiadau Saesneg‎ (92 Tud)

C

• Casgliadau o gerddi Saesneg‎ (1 Cat, 1 Tud)
• Casgliadau o straeon byrion Saesneg‎ (1 Cat, 8 Tud)
• Cyhoeddwyr Lloegr‎ (1 Cat)

Ff

• Llyfrau ffeithiol Saesneg‎ (3 Cat, 1 Tud)

H

• Hunangofiannau Saesneg‎ (1 Cat)

Ll

• Llyfrau Saesneg ar hamdden‎ (102 Tud)

N

• Nofelau Saesneg‎ (5 Cat, 332 Tud, 3 Ff)

A

• Aliens in the British Flora
• Alpha Force
• Aradia, or the Gospel of the Witches
• The Arthurian Annals

B

• Bangor 1883-1983
• Bala, Lake of Beauty
• Black Elk Speaks
• Brewer's Dictionary of Phrase and Fable

C

• Catalogue of Seals in the National Museum of Wales - Volume 1
• Catalogue of Seals in the National Museum of Wales (Volume 2)
• Celtic Bards, Celtic Druids
• A Celtic Book of Days
• The Celtic Image
• Celtic Mysteries
• Celtic Mythology
• Celtic Myths
• Celtic Myths, Celtic Legends
• Celtic Ornament
• Celtic Pilgrimages
• Celtic Sacred Landscapes
• Classic Celtic Fairy Tales
• Communication Breakdowns
• Community Caerphilly
• The Creatures of Celtic Myth
• Crime and Policing in the Twentieth Century

D

• The Dark Spirit
• Darogan (llyfr)
• Denbighshire Folk Tales
• The Derek Williams Collection
• Dewin Gwlad yr Os
• Dictionary of Celtic Myth and Legend
• Dictionary of Celtic Mythology
• Dracula

E

• Easy to Duplicate Celtic Borders

F

• The Films of Elias Querejeta
• Flora of Flintshire
• For Those in Peril
• For Women, for Wales, for Liberalism

G

• Geology of the Country Around Aberdaron, Including Bardsey Island
• Geology of the Country Around Cadair Idris
• Ghosts, Legends and Lore of Wales
• The Golden Bough
• Gray's Anatomy

H

• Heritage, Place and Community
• Hidden Gardens
• Horrible Histories

L

• The Lakes of Wales
• Liber AL vel Legis

M

• Mapping the Roads
• Margery Kempe's Meditations
• The Milford Haven Oil Industry
• Mona Antiqua Restaurata
• Le Morte d'Arthur
• Mosses and Liverworts of Woodland
• Mountain Plants of the British Isles
• Mynydd Du and Fforest Fawr

O

• On the Origin of Species

P

• Pembrokeshire Folk Tales
• People, Environment, Disease and Death
• The Pianist (cofiant)
• The Pit and the Pendulum
• Projections of Peronism

R

• Remaking Brazil

S

• Seven Pillars of Wisdom
• A Short History of Wales (O. M. Edwards)
• Snowdon's Plants Since the Glaciers

T

• A Tour round North Wales

W

• The Welsh Fairy Book
• Welsh Ferns
• The Welsh Language
• The Welsh Language (llyfr)
• The Welsh Wars of Independence
• Wild Wales
• Wine Drinking Culture in France