Cnoc, cnoc! Pwy sy 'na?
By: Rose Impey ; addasiad Emily Huws ; [lluniau: Louise Voce]
Contributors: Huws, Emily; Voce, Louise
Series: Gwalch balch -- 12; Gwalch balch -- 12.
Publisher: Gwasg Carreg Gwalch
Published: 2011
Place of publication: Llanrwst
Language: wel
Number of pages: 63
ISBN-13: 9781845273187
Subjects: Mice; Pictorial works; Juvenile fiction; Bears; Animals; Dwellings; Hares; Caterpillars
Work titles: Knock, knock! Who's there?
Notes: "Dwy stori mewn un llyfr"--Ar waelod y dudalen deitl = at foot of title page.

Cyhoeddwyd yn wreiddiol yn Saesneg = Originally published in English: London : Orchard Books, 2000.

Addasiad Cymraeg o = Welsh adaptation of: Knock, knock! Who's there?
Table of contents: title: Byw yn y tŷ bach twt; title: Dwyn tŷ'r sgwarnog.